Oxygenation of fetal blood occurs in the placenta before it returns in the umbilical vein which joins the left branch of the portal vein. It bypasses the capillaries of the liver by going through the ductus venosus, which is obliterated after birth and becomes the ligamentum venosum. The oxygenated blood enters the inferior vena cava and is transported to the right atrium and
then through the patent foramen ovale to the left atrium and on to the left ventricle. From the left ventricle, the blood flows into the aorta and through the fetal vascular network. Blood returning from the head of the foetus passes through the superior vena cava to the right atrium and straight on to the right ventricle and pulmonary artery. However, it does not enter the pulmonary
circulation, being short-circuited by the ductus arteriosus to the aorta. Aortic blood is carried via the umbilical arteries back to the placenta for reoxygenation. At birth, the three short circuits, the ductus venosus, foramen ovale and ductus arteriosus, close.

This patient presents because of significant mood changes since she gave birth to her child: she is sad most of times and she is having guilt feelings about her adequacy for motherhood- She is also complaining of insomnia, tiredness, and even some suicidal ideation. These symptoms are highly suggestive postpartum depression. This should be differentiated from postpartum blues, which usually present within the first 2 weeks and last for few days. This patient’s symptoms started 5 weeks postpartum. Postpartum depression usually presents within the first 6 weeks to the first year postpartum.

Postpartum depression is the most common complication of childbearing and affects the mother, the child, and relationship with the partner. It is diagnosed the same way as major depressive disorder in other patients. Since untreated postpartum depression can have long-term effects on the mother and the child, appropriate therapy should be undertaken as soon as possible- Antidepressant medications such as sertraline can be used to treat postpartum depression. In a patient who has suicidal ideation, electroconvulsive therapy has a more rapid and effective action than medication and should be considered in these patients.

→ Cognitive behavioural therapy is effective in women with mild to moderate postpartum depression; it would not be a good choice in this patient with suicidal ideation and at risk of harming the baby.
→ Estrogen therapy used alone or in combination with antidepressant, has been shown to significantly reduce the symptoms of postpartum depression; however, it would not be the most appropriate choice in a patient with suicidal ideation.
→ Peer support has shown equivocal results in various studies even though most postpartum patients report that lacking an intimate friend or confidant or facing social isolation are factors leading to depression.
→ Non-directive counselling also known as ”listening visits“ has been found to be effective in postpartum patients, though the studies that were conducted are deemed to be of small sample and larger studies still need to be done to validate these findings. It would not be an appropriate choice for this patient with suicidal ideation.

Progestin only pills increase the risk of developing follicular cysts. Sonographic studies have observed that follicular cysts are more common in POP users than women not using hormones. The follicular changes tend to increase and regress over time. No intervention is required in asymptomatic women, other than reassurance. POP users who have persistent concerns about ovarian follicular changes should be offered another method of contraception.

All other options are not contraindications to the use of mini-pills.

In early pregnancy Progesterone is produced by the corpus luteum.. This organ is fundamental for pregnancy maintenance until the placenta (syncytiotrophoblast) takes over its function at the 7-9th week of gestation, just after the expression of major histocompatibility complex antigens is suppressed in extra-embryonic fetal tissue.

Occipitomental diameter is the greatest diameter of the fetal scalp and runs from chin to the prominent portion on the occiput. It measure about 12.5cm in diameter.

Opiates and spinal anaesthetics reduce the variability of a CTG. Including some antihypertensives like labetalol and alpha methyl dopa.

Shoulder dystocia is a complication associated with fetal macrosomia and may result in neurological dysfunction. Fetal macrosomia is generally defined as birth weight – 4,000 g. It occurs in about 10% of pregnancies and one of the most important predictors of fetal macrosomia is previous macrosomic infant(s). The recurrence rate of fetal macrosomia is above 30%. Other risk factors are maternal diabetes, multiparity, prolonged gestation, maternal obesity, excessive weight gain, male foetus, and parental stature- Not all cases of fetal macrosomia lead to shoulder dystocia and the occurrence of this complication is only 0.5%-1% of all pregnancies.

To make clinical decision regarding management of the patient, it is important to understand that there are other factors that lead to shoulder dystocia, such as the mother’s anatomy. While statistics suggest that there’s a tendency to choose elective Caesarean delivery for suspected macrosomia, it is believed that most of procedures are unnecessary, as evidence has shown the number of complications are not reduce- Also while it is logical to consider induction of labour at the 37th week of pregnancy, it is associated with increased Caesarean deliveries because of failed inductions. The recommended course of action is watchful waiting till the patient goes in labour.

→ Induce labour at the 37th week of gestation is not the best course of action, as it is associated with high failure rate, which often leads to Caesarean delivery.
→ Schedule elective Caesarean delivery is considered unnecessary in patients who do not have diabetes. Statistics have shown no evidence that Caesarean delivery reduces the rate of complications.
→ Serial ultrasound for fetal weight estimation is incorrect. The strategies used to predict fetal macrosomia are risk factors, Leopold’s manoeuvres, and ultrasonography. Even when they are combined, they are considered inaccurate; much less ultrasonography alone.
→ At this point, blood glucose control in pregnancies associated with diabetes seems to have desired results in preventing macrosomia- A weight loss program is usually not recommended- Instead, expectant management should be considered.

Passive immunity to the neonate is provided by immunoglobulin G (IgG) since it can be transferred through the placenta from mother to the foetus.
IgA is transferred from mothers to offspring through breast milk.
IgM molecular structure is too big to be filtered through the placental vasculature to the foetus. IgM is the first Ig to be synthesised by the neonate

MEDIAL umbilical ligament = remnant fetal umbilical arteries
MEDIAN umbilical ligament = remnant of urachus

In this case, induction of labour at 37 weeks of gestation was necessary due to the absence of spontaneous of labour 24 hours after rupture of membranes. High doses of Syntocin and large volume of fluids may be required particularly when induction is done before term.

Syntocin infusion can lead to uterine hypertonus and tetany which can result in fetal distress at any dosage. This is a common reason to decrease or stop the infusion and an indication for Caesarean delivery due to fetal distress

Uterine rupture can occur as a result of Syntocin infusion especially when the accompanying fluids do not contain electrolytes, which puts the patient at risk for water intoxication.

Maternal hypotension results from Syntocin infusion, not hypertension.

Shoulder dystocia occurs when the bisacromial diameter, which is the breadth of the shoulders, exceed the diameter of pelvic inlet. This typically results in a bony impaction of the anterior shoulder against the maternal symphysis pubis, instead of an arrest at the pelvic inlet. Brachial plexus palsies including Erb’s palsy is the most common foetal injury associated with shoulder dystocia.

It is not hyper-extension but the hyper-flexion of maternal legs tightly on her abdomen, called as McRoberts manoeuvre, which facilitates delivery during shoulder dystocia. This technique is effective as it increases the mobility of sacroiliac joint during pregnancy, which allows the rotation of pelvis and thereby facilitating the release of fetal shoulder.
If this manoeuvre does not succeed, another technique called suprapubic pressure is done where an assistant applies pressure on the lower abdomen and gently pulls the delivered head. This technique is useful in about 42% of cases with shoulder dystocia.

Maternal diabetes mellitus and foetal macrosomia both are a risk factor for shoulder dystocia.

Administration of epidural anaesthesia during labour increases the possibility of shoulder dystocia.

Risk of shoulder dystocia may increase with Oxytocin augmentation also.

The juxtaglomerular apparatus is the main site for the production of renin. It plays an important role in the regulation of the blood pressure. These structures are mainly located in the cortex of the kidneys.

Dizygotic means two (di) fertilized eggs (zygotes). Dizygotic twins occur when two eggs are fertilized by two separate sperm. Dizygotic twins are also known as fraternal or non-identical twins. They are the most common type of twins.

Unlike monozygotic twins (also known as identical twins), dizygotic twins do not share the same genes. Monozygotic twins share 100 percent of each other genes. Dizygotic twins share only 50 percent. This is the same genetic similarity found between siblings conceived and born at different times.

Flumazenil is used for benzodiazepine overdose.
Naloxone is used for opioid overdose.
Parvolex (N-acetyl cysteine) is used for paracetamol overdose.
Protamine can be used for Heparin reversal.
Beriplex can be used for Warfarin reversal.

Patient in the given case has developed clinical features of mild preeclampsia presented as hypertension, ankle and facial oedema along with proteinuria.

As the fetal lungs are not yet matured, best management in this case would be observing the patient frequently, starting her on steroids and antihypertensive drugs like methyldopa, or labetalol. 31 to 34 weeks of gestation is the optimal gestational age for starting dexamethasone therapy which will help in controlling blood pressure, helps in the maturation of lungs and will also gives time to organise delivery when the lungs are matured.

Immediate C-section is not required at this stage of pregnancy, however a plan for cesarean section must be made to carry it out if the patient develops eclampsia during her stay in the hospital. Immediate vaginal delivery is also not indicated as the pregnancy is far from term. Induced labour will result in fetal demise soon after birth due to the fetal lung immaturity, but immediate delivery has to be considered once the fetal lung attains maturity.

Magnesium Sulphate is indicated only in women with severe pre-eclampsia and even in such cases primary importance is given to blood pressure controlling. Magnesium sulphate is not indicated on this case as the patient is in mild eclampsia.

Even though Paracetamol and deep vein thrombosis prophylaxis are indicated in this case, anticoagulants should be avoided considering the emergency need for surgery.

The perineal membrane is a tough fascial sheet that attaches to the sides of the urogenital triangle. it forms the inferior border of the deep pouch which lies between this and the levator ani and the superior border of the superficial pouch.

There is high possibility of her being pregnant. Urine B-hCG has to be checked to exclude pregnancy.

Maternal disorders, such as diabetes, in-utero infections, drug usage, placental abnormalities and fetal conditions as congenital and chromosomal abnormalities, Rh iso-immunization, and multiple gestations, are generally associated with polyhydramnios. Congenital abnormalities such as duodenal, oesophageal, or intestinal atresia of the foetus are the most common malformations that typically cause gastro-intestinal obstruction and interfere with fetal swallowing and/or absorption resulting with polyhydramnios. However, in about 70% of cases, none of the aforementioned aetiologies are causes of polyhydramnios, and it is referred to as idiopathic or isolated.

Lichen Sclerosis is a destructive inflammatory condition that effects the anogenital region of women. It effects around 1 in 300 women. It destroys the subdermal layers of the skin resulting in hyalinization of the skin leading to parchment paper appearance of the skin. It is associated with vulval cancer and it is estimated that the risk of developing vulval cancer after lichen sclerosis is around 3-5%.

Choriocarcinoma may arise as a complication of gestation or as spontaneous germ cell tumours. As this scenario depicts that the women has previous abortion points to the fact that these may have been molar pregnancies. As choriocarcinoma can arise from a molar pregnancy it can be differentiated from it by the presence of invasion into the uterus and metastasis to the lungs primarily.

pre-eclampsia is defined as hypertension of at least 140/90 mmHg recorded on at least two separate occasions and at least 4 hours apart and in the presence of at least 300 mg protein in a 24 hour collection of urine, arising de novo after the 20th week of pregnancy in a previously normotensive woman and resolving completely by the sixth postpartum week.

The earliest fetal heart rate detected transvaginally was at 6 weeks 0 days of gestation compared with 7 weeks 0 days transabdominally. The transvaginal Doppler method was also more successful in detecting the fetal heart rate in women with a retroverted uterus (p < or = 0.01).

Yasmin has been linked to decreased fluid retention and weight gain as a side effect of COCs, which is why most women who experience this side effect prefer Yasmin®.
Due to its anti-mineralocorticoid properties, drospirenone, unlike earlier progestogens, is associated with no weight gain or even moderate weight loss.
Yasmin has a similar failure rate to other COCs. No evidence using Yasmin is linked to a lower risk of cervical cancer as a long-term side effect of COCs. Yasmin, like all COCs, can cause spotting and irregular bleeding in the first few months of use.
Drospirenone, a progesterone component, has antiandrogenic properties and is slightly more successful in treating acne, but the difference is not big enough to make it preferable in terms of acne therapy or prevention when compared to other COCs.

First stage of the labour starts with the contractions of the uterus. With time, the no. of contractions, its duration and intensity increases. It ends once the cervix is fully dilated.

CVS has decreased in frequency with the recent increased uptake of cell-free DNA screening. It remains the only diagnostic test available in the first trimester and allows for diagnostic analyses, including fluorescence in situ hybridization (FISH), karyotype, microarray, molecular testing, and gene sequencing. CVS is performed between 10 and 14 weeks’ gestation. CVS has been performed before 9 weeks in the past, though this has shown to increase the risk of limb deformities and, therefore, is no longer recommended.

In girls, delayed puberty and primary amenorrhea may be subdivided according to associated changes in stature. If the affected girl is short, the likely causes are gonadal dysgenesis (Turner syndrome) or hypopituitarism (with both gonadotropin and growth hormone deficiency). Gonadal dysgenesis results from the absence of a sex chromosome or other abnormality of a sex chromosome. In affected girls the gonads are streaks of fibrous tissue and contain no follicles, and these girls may have a variety of congenital anomalies, including a webbed neck, a shieldlike chest, or a small jaw.

Kallmann syndrome presents with amenorrhea, infantile sexual development, low gonadotropins, normal female karyotype, and anosmia (the inability to perceive odours).

In Müllerian agenesis, the Müllerian ducts either fail to develop or regress early in fetal life. These patients have normal ovarian development and normal secondary sexual characteristics. They present with a blind vaginal pouch and no upper vagina, cervix, or uterus, and primary amenorrhea.

The McCune-Albright syndrome rather presents with precocious puberty.

Ventilation begins to increase significantly at around 8 weeks of gestation, most likely in response to progesterone-related sensitization of the respiratory centre to carbon dioxide and the increased metabolic rate. Significant alterations occur in the mechanical aspects of ventilation during pregnancy. Minute ventilation (or the amount of air moved in and out of the lungs in 1 minute) is the product of tidal volume and respiratory rate and increases by approximately 30–50 per cent with pregnancy. The increase is primarily a result of tidal volume, which increases by 40 per cent (from 500 to 700 mL), because the respiratory rate remains unchanged. The increase in minute ventilation is perceived by the pregnant woman as shortness of breath, which affects 60–70 per cent of women. This physiological dyspnoea is usually mild and affects 50 per cent of women before 20 weeks gestation, but resolves immediately postpartum.

Alcohol exposure during pregnancy results in impaired growth, stillbirth, and fetal alcohol spectrum disorder. Fetal alcohol deficits are lifelong issues with no current treatment or established diagnostic or therapeutic tools to prevent and/or ameliorate some of these adverse outcomes.

Alcohol readily crosses the placenta with fetal blood alcohol levels approaching maternal levels within 2 hours of maternal intake. As there is known safe level of alcohol consumption during pregnancy, and alcohol is a known teratogen that can impact fetal growth and development during all stages of pregnancy, the current recommendation from the American College of Obstetricians and Gynaecologists, Centre for Disease Control (CDC), Surgeon General, and medical societies from other countries including the Society of Obstetricians and Gynaecologists of Canada all recommend complete abstinence during pregnancy.

Overflow incontinence typically presents with continuous urinary leakage or dribbling in the setting of incomplete bladder emptying. Associated symptoms can include weak or intermittent urinary stream, hesitancy, frequency, and nocturia. When the bladder is very full, stress leakage can occur or low-amplitude bladder contractions can be triggered resulting in symptoms similar to stress or urgency incontinence.

Women with urgency incontinence experience the urge to void immediately preceding or accompanied by involuntary leakage of urine

Individuals with stress incontinence have involuntary leakage of urine that occurs with increases in intraabdominal pressure (e.g., with exertion, sneezing, coughing, laughing) in the absence of a bladder contraction.

In an ECG the P wave represents atrial depolarization. The QRS complex represents the ventricular depolarization, T waves represent ventricular repolarization and the U wave represents repolarization of the interventricular septum.

Firstline medical management of PCOS is with clomiphene.

Ovulation Disorders

WHO Group I : Hypothalamic pituitary failure (Stress, anorexia, exercise induced)
Management:
Increase BMI if <19 kg/m2
Reduce exercise if high levels
Pulsatile GnRH or Gonadotrophins with LH activity to induce ovulation

WHO Group II : Hypothalamic-pituitary-ovarian dysfunction (PCOS)
Management:
Weight reduction if BMI >30
Clomiphene/Clomiphene (1st line)
Metformin (1st line)
Clomiphene & Metformin (1st/2nd line)
Laparoscopic drilling (2nd line)
Gonadotrophins (2nd line)

WHO Group III : Ovarian failure
Management:
Consider IVF with donor eggs

This patient has acidosis as the pH is low <7.35 The pO2 is irrelevant. The pCO2 is raised i.e. the respiratory system is causing acidosis. The patient is acidotic so this is a respiratory acidosis The Base Excess is normal. You would typically expect the base excess to rise but metabolic compensation is slower than respiratory compensation so this picture may be seen acutely.

Nerve Supply: L5 to S2 via Nerve to Piriformis
Origin: Sacrum
Insertion: Greater trochanter
Action: External rotation of hip
Blood Supply: Superior and Inferior gluteal arteries and lateral sacral arteries

In the management of a miscarriage, after the completion of 7-14 days of expectant management, the woman is advised to take a pregnancy test after 3 weeks. In case of a positive result she is to return for further care.

Paget’s disease of the breast is a type of cancer that outwardly may have the appearance of eczema, with skin changes involving the nipple of the breast. Symptoms may include redness of the nipple skin and crusting may occur around the area. In more advance cases, symptoms may include itching or a burning pain in the nipple.

The uterus needs support in order to remain centered inside the pelvic cavity. The support it receives comes in two forms: dynamic and passive. The ligaments of the uterus have an important role in both.

Dynamic support is provided by the pelvic diaphragm through tonic contractions while standing and sitting and active contractions during moments of increased abdominal pressure, such as coughing or sneezing. During these moments, the ligaments of the uterus transmit the force of the diaphragm towards the organ itself, maintaining its position.

The ligaments are also crucial in providing passive support. By minimizing movement of the body and the cervix, they maintain the uterus in the typical anteverted and anteflexed position directly on top of the bladder. This provides a support for the uterus when the abdominal pressure increases.

Hence, even though the broad ligament, round ligament and ovarian ligament have some role in the suspension of the uterus, the uterosacral ligament plays the most significant role. It is also the ligament used for surgical suspension of POP.

After the release of the oocyte, the theca and the granulosa cells form the corpus luteum which undergoes extensive vascularization for continued steroidogenesis. Progesterone is secreted by the luteal cells and is synthesized from cholesterol.

Repetitive late decelerations can be caused by fetal hypoxia which results in constriction of the vessels to circulate blood from the peripheries to more important organs of the body like the brain and heart etc.

Haemoglobin decreases from 13.3 g/dL to 10.5 g/dL from the start of pregnancy i.e. First trimester till the 3rd trimester.

Magnesium Sulphate is the drug of choice in eclamptic patients. A loading dose of 4g magnesium sulphate in 100mL 0.9% saline IVI over 5min followed by maintenance IVI of 1g/h for 24h. Signs of toxicity include respiratory depression and jerky tendon reflexes. In recurrent fits additional 2g can be given. Magnesium should be stopped when the respiratory rate is <14/min, absent tendon reflexes, or urine output is <20mL/h.

The nutritional status of a woman before and during pregnancy is important for a healthy pregnancy outcome. Pregnancy is a state of increased requirement of macro and micronutrients, and malnourishment or inadequate dietary intake before and during pregnancy, can lead to adverse perinatal outcomes. Many nutritional interventions have been proposed for pregnant mothers. These include multiple micronutrients (MMN), iron/folate, balanced protein energy, calcium, zinc and folic acid supplementation.

First trimester abortions are performed using mifepristone 600 mg followed by insertion of 1 mg gemeprost vaginal pessary. The patients stays in the hospital for about 4-6 hours. At the time of abortion azithromycin 1 g and metronidazole 800 mg should be given to cover the gram positive and negative bacteria.

Premenstrual dysphoric disorder (PMDD) is a more serious form of premenstrual syndrome (PMS). PMS causes bloating, headaches, and breast tenderness a week or two before your period.

With PMDD, you might have PMS symptoms along with extreme irritability, anxiety, or depression. These symptoms improve within a few days after your period starts, but they can be severe enough to interfere with your life.

PMDD symptoms appear a week or two before menstruation and go away within a few days after your period starts. In addition to PMS symptoms, you may have:

Anger or irritability.
Anxiety and panic attacks.
Depression and suicidal thoughts.
Difficulty concentrating.
Fatigue and low energy.
Food cravings or binge eating.
Headaches.
Insomnia.
Mood swings.

The following treatments have been shown to relieve symptoms:

Sertraline, escitalopram, paroxetine, and fluoxetine are SSRIs (selective serotonin reuptake inhibitors). SSRIs are the first-line treatment and are extremely effective.
The second line of defence is alprazolam (a short course recommended due to its addictive potential).
The use of temazepam has little advantage because it only aids with sleep and is relatively short-acting.
Lifestyle modifications-weight loss, exercise, quitting smoking, and relaxation therapies for less severe PMS.
Danazol-suppresses the ovulation and helps with mastalgias associated with PMS.

Warfarin is teratogenic if it is used in the first trimester. It causes bone defects and haemorrhages in the developing foetus.

The uterine artery arises from the internal iliac artery, in particular the anterior division of the internal iliac artery. Some older texts refer to the internal iliac as the hypogastric artery. The vaginal artery typically arises as its own branch of the internal iliac artery. The ovarian arteries are branches of the aorta

The posterior scrotal artery is a terminal branch of the perineal artery which is a branch of the internal pudendal artery.

Congenital infections can be the cause of various congenital abnormalities. Infection with the Rubella virus, part of the TORCH infections (toxoplasmosis, other organisms, rubella, cytomegalovirus, and herpes simplex), can lead to cardiac abnormalities, ophthalmic defects, sensorineural deafness and neurodevelopmental delays. At birth congenital rubella syndrome presents with a petechial rash characteristically dubbed a blueberry muffin rash, and hepatosplenomegaly with jaundice. Immunization of the mother against measles is an effective way of reducing the occurrence of congenital rubella syndrome.

Mitosis is the process during which cell division occurs. It is divided into 4 stages:
– The first stage is the prophase during which the chromosomes condense, mitotic spindles form and the chromosomes pair which each other.
– The second stage is the metaphase during which the chromatids align at the equatorial plane.
– The third stage is the anaphase during which the chromatids are separated into 2 daughter chromosomes.
– The fourth phase is the telophase during which the chromatids decondense and a new nuclear envelop forms around the each of the daughter chromosomes. Cytokinesis is the process during which the cell cytoplasm divides.

Shoulder dystocia occurs when the fetal shoulder impacts on the maternal symphysis or sacrum during vaginal delivery. About 10% of babies with shoulder dystocia will suffer a brachial plexus injury, the most common one being Erb-Duchenne palsy. In Erb’s palsy, the upper nerve roots C5 and C6 are damaged due to excessive widening of the angle between the head and the shoulder. This causing temporary paralysis in the affected arm whereby the infant will present with its hand hanging limp by his side, internal rotation of the forearm, plus wrist and finger flexion. This sign is called the ‘waiter’s tip hand’. The palsy usually resolves spontaneously in a large proportion of cases.

If a pregnant woman develops primary herpes simplex infection after 30 weeks gestation, her risk for transmission of herpes simplex virus to the neonate leading to neonatal infection increases significantly.
Below mentioned are the most common risk factors resulting in intrapartum herpes simplex infection of the baby:
– Premature labor
– Premature rupture of membrane
-Primary herpes simplex infection near the time of delivery
– Multiple lesions in the genital area
The most appropriate management for such case includes:
– Checking for herpes simplex infection with PCR testing (cervical swab)
– Prophylactic antiviral therapy of the mother from 36th week until delivery
– Cesarean section delivery

In the case above mentioned, it is better to start antiviral therapy immediately and consider cesarean section to minimize the risk of vertical transmission of infection to the neonate.

Abnormal placental adherence to the uterus, generally termed Placenta Accreta, is divided into 3 conditions.
– Placenta accreta: refers to the invasion of the chorionic villi beyond the decidual surface of the myometrium.
– Placenta increta: the villi invade deep into the myometrium but spare the serosa;
– Placenta percreta: the chorionic villi invade through the myometrium, penetrate the uterine serosa, and may invade surrounding pelvic structures.

These conditions can predispose patients to obstetric bleeding in the third trimester, often requiring emergency intervention.

Risk factors in the development of an abnormal placental adherence include previous c-sections. Placenta Previa, is also a cause of antepartum haemorrhage and serves as a risk factor in the development of abnormal placental adherence.

Twin gestations are generally at increased risk of complications and this risk is further stratified based on the chorionicity ie. number of placentas and amnionicity, the number of amniotic sacs of the gestation. In the given case patient has monochorionic diamniotic twins, which means 1 placenta and 2 amniotic sacs, based on the presence of 2 embryos, a single placenta and a thin intertwin membrane composed of 2 amniotic sacs that meets the placenta at a 90-degree angle (“T sign”). In patients who appear to have a single placenta, the base shape of the intertwin membrane distinguishes between a monochorionic (“T sign”) and fused dichorionic (“lambda sign”) gestation.
Monochorionic twins are at high risk for twin-twin transfusion syndrome (TTTS), which is a complication that can result in heart failure and fetal
eonatal mortality in both twins. In TTTS, unbalanced arteriovenous anastomoses are present between the shared placental vessels that supply the twins, because of these anastomoses, blood from the placental arteries from one twin (donor), which is of high resistance/pressure, is shunted into the placental veins of the other twin (recipient) with low resistance/pressure. This shunting of blood away from the donor twin causes anemia that leads to renal failure, oligohydramnios, low-output heart failure, and fetal growth restriction. In contrast, the shunting of blood toward the recipient twin causes polycythemia, which leads to polyhydramnios, cardiomegaly, high-output heart failure and hydrops fetalis. This in turn makes both twins at high risk for intrauterine and neonatal death.
Mild TTTS is expectantly managed with serial ultrasounds to evaluate for worsening clinical features, whereas moderate-to-severe cases are treated with laser coagulation of the placental anastomoses.

In monozygotic twins, placentation type is determined by timing of the twinning.  Twinning that occurs shortly after fertilization yields a dichorionic diamniotic gestation.  In contrast, the incomplete division (ie, fission) that can lead to conjoined twins occurs later in development and yields a monochorionic monoamniotic gestation. As the twins are in the same sac, monochorionic monoamniotic gestations can be complicated by cord entanglement but not possible in the given case as this patient has diamniotic twins.

Risk factors for placenta accreta, implantation of the placenta directly into the myometrium, include placenta previa and prior uterine surgeries like cesarean delivery, myomectomy, etc

Twin pregnancies are at increased risk of placenta previa (placental tissue that covers the internal cervical os); however, this patient has a fundal placenta, making this complication unlikely.

Monochorionic twin gestations can be complicated by twin-twin transfusion syndrome, which is potentially a fatal condition that results from unbalanced vascular anastomoses between the vessels supplying umbilical cords of each twin.

Oxytocin is the primary stimulus for uterine involution following childbirth.

In this case, the patient has a missed abortion, which is defined as a dead foetus or embryo without passage of tissue and with a closed cervix. This condition often presents with failure to detect fetal heart tones or a lack of growth in uterine size.

– By 14 weeks estimated gestational age, fetal heart tones should be detected by both handheld Doppler and ultrasonography.
– An inevitable abortion presents with a dilated cervix, but no passage of fetal tissue.
– A blighted ovum involves failure of the embryo to develop, despite the presence of a gestational sac and placental tissue.

Dermoid cysts and teratomas contain elements from multiple germ cell layers. They are often considered the same entity (even in medical texts) however a dermoid is composed only of dermal and epidermal elements. A teratoma has mesodermal and endodermal elements Mature teratomas are composed of well-differentiated derivations from at least 2/3 germ cell layers (i.e. ectoderm, mesoderm, and endoderm). They contain developmentally mature skin complete with hair follicles, sweat glands, sometimes hair, and sometimes sebum, blood, fat, bone, nails, teeth, eyes, cartilage, and thyroid tissue.

Cardiotocography (CTG) helps to record the heartbeat of the foetus in parallel to measuring the contractions of the mother’s uterus, this is the most appropriate tool to assess this patient’s condition.

The Ovaries lymph drains primarily to the lateral para-aortic lymph nodes

Among all the antiepileptic drugs sodium valproate carries the highest teratogenicity rate. The potential congenital defects caused by sodium valproate are as below:
– Neural tube defects like spina bifida, anencephaly
– Cardiac complications like congenital ventricular septal defect, aortic stenosis, patent ductus arteriosus, aberrant pulmonary artery
– Limb defects like polydactyly were more than 5 fingers are present, oligodactyly were less than 5 fingers are present, absent fingers, overlapping toes, camptodactyly which is presented as a fixed flexion deformity of one or more proximal interphalangeal joints,split hand, ulnar or tibial hypoplasia.
– Genitourinary defects like hypospadias, renal hypoplasia, hydronephrosis, duplication of calyceal system.
– Brain anomalies like hydranencephaly, porencephaly, arachnoid cysts, cerebral atrophy, partial agenesis of corpus callosum, agenesis of septum pellucidum, lissencephaly of  medial sides of occipital lobes, Dandy-Walker anomaly
– Eye anomalies like bilateral congenital cataract, optic nerve hypoplasia, tear duct anomalies, microphthalmia, bilateral iris defects, corneal opacities.
– Respiratory tract defects like tracheomalacia, lung hypoplasia,severe laryngeal hypoplasia, abnormal lobulation of the right lung, right oligemic lung which is presented with less blood flow.
– Abdominal wall defects like omphalocele
– Skin abnormalities capillary hemangioma, aplasia cutis congenital of the scalp.

This patient at 36 weeks of gestation likely had a generalized tonic-clonic seizure. A new-onset seizures in pregnancy can be due to either due to eclampsia which is pregnancy-specific or due to other non-obstetric causes like meningitis, intracranial bleeding etc.

In pregnant and postpartum women eclampsia is the most common cause for seizures which is classically associated with preeclampsia, a new-onset hypertension at ≥20 weeks gestation, with proteinuria and/or signs of end-organ damage. Although this patient has hypertension, absence of proteinuria and the additional findings like agitation, dilated pupils, hyponatremia and normal head CT scan are suggestive of another etiology. Patients with eclampsia will show white matter edema in head CT scan.

Amphetamine intoxication, which causes overstimulation of the alpha-adrenergic receptors resulting in tachycardia, hypertension and occasional hyperthermia, might be the cause for this patient’s seizures. Some patients will also have diaphoresis and minimally reactive, dilated pupils and severe intoxication can lead to electrolyte abnormalities, including significant hyponatremia (possibly serotonin-mediated) and resultant seizure activity.
Confirmation of Amphetamine intoxication can be done by a urine drug testing. it is essential to distinguishing between eclampsia and other causes of seizure in this case, as it will help to determine whether or not there is need for an emergency delivery.

Altered mental status and electrolyte abnormalities can be due to heat stroke, however, patients affected this way will have an elevated temperature of >40 C /104 F associated with hemodynamic instabilities like hypotension.

Hemolysis, elevated liver enzymes, and low platelet count (HELLP) syndrome is a hypertensive disorder of pregnancy which can result in seizures (ie, eclampsia), but this patient’s hematocrit level is normal without any hemolysis, also patients with HELLP syndrome typically presents with a platelet count <100,000/mm3. Seizures and altered mental status in patients with prior splenectomy can be due to pneumococcal meningitis however, such patients will present with high fever and nuchal rigidity, making this diagnosis less likely in the given case. Amphetamine intoxication can present with hypertension, agitation, diaphoresis, dilated pupils, and a generalized tonic-clonic seizure due to hyponatremia, which is most likely to be the case here.

During mid secretory phase, the endometrium cells undergo distension, become more tortuous and are lined by columnar cells.
In the early proliferative phase, the glandular epithelium is cubo-columnar, while in the late proliferative phase, the glands increase in size, becoming tortuous and there is pseudostratification of the epithelium.

The superficial ring is the exit to the inguinal canal. It is a triangular aperture in the aponeurosis of external oblique. The conjoint tendon reinforces the ring posteriorly

Women who have used oral contraceptives for 5 years or more are more likely to get cervical cancer than women who have never used them. The longer a woman uses oral contraceptives, the higher her chances of developing cervical cancer become. According to one study, using marijuana for less than 5 years increases the risk by 10%, using it for 5–9 years increases the risk by 60%, and using it for 10 years or more increases the risk by double. After women cease using oral contraceptives, their risk of cervical cancer appears to decrease over time. Endometrial, ovarian, and colorectal cancer risks, on the other hand, are lowered.
Compared to women who had never used oral contraceptives, women who were taking or had just discontinued using oral combination hormone contraceptives had a slight (approximately 20%) increase in the relative risk of breast cancer. Depending on the type of oral combination hormone contraception used, the risk increased anywhere from 0% to 60%. The longer oral contraceptives were used, the higher the risk of breast cancer.

CMV effects 1 in 200 pregnancies of which 30% will transmit the virus to the foetus and of which 30% foetus will be effected.

This is Linea Nigra. It occurs in 3/4 of pregnancies and is due to increased melanocyte-stimulating hormone production by the placenta. This also causes melasma and darkening of the nipples.

In women of childbearing age, the most likely cause of abnormal vaginal bleeding is pregnancy; thus, the most appropriate initial test would be an hCG level. Once pregnancy has been excluded, patient history would guide further testing. Iatrogenic causes, usually resulting from certain medicines or supplements, are the next most common cause in this age group, followed by systemic disorders. Haemoglobin and haematocrit would be appropriate only if the patient seemed acutely anaemic due to the abnormal bleeding.

Delayed puberty is defined as the absence of breast development in girls beyond the age of 13, and the absence of testicular development in boys beyond the age of 14. The incidence of delayed puberty is 3%, with the condition being more common in boys.

The round ligament is a remnant of the gubernaculum in females. In males it persists as the scrotal ligament.

Oxytocin can also stimulate after pains that occur 2-3 following delivery.

The most appropriate test for a hydatiform mole is serum beta hCG levels, which are consistently raised in these patients. The levels return to normal when the pregnancy is terminated.

Oestrogen is secreted by the corpus luteum and is responsible for the proliferation of the endometrium to prepare it for the implantation of the zygote.

Classically, hirsutism has been considered a marker of increased androgen levels in females from increased production of androgens (i.e. testosterone) either by the adrenals or due to an ovarian disease. The ovarian causes for hyperandrogenism are polycystic ovarian syndrome (PCOS) and ovarian tumours. Adrenal causes include Cushing’s syndrome, androgen-producing tumours, and congenital adrenal hyperplasia (CAH), most commonly due to 21-hydroxylase deficiency. Less common causes include the hyperandrogenic-insulin resistant-acanthosis nigricans syndrome (HAIRAN). Hyperprolactinemia by increasing adrenal dehydroepiandrosterone sulphate (DHEA-S) production may cause hirsutism. Androgenic drugs are also an important cause of hirsutism. About 20% of the patients may present with idiopathic hirsutism (IH) with normal androgen levels and ovarian function. The cause of increased hair in these women is thought to be related to disorders in peripheral androgen activity. Onset of IH occurs shortly after puberty with slow progression. PCOS and IH account for 90% of the hirsutism in women. Hirsutism can also occur in some premenopausal women and continue for a few years after menopause. This is due to decrease in ovarian oestrogen secretion with continuous androgen production.

Early ultrasound improves the early detection of multiple pregnancies and improved gestational dating may result in fewer inductions for post maturity.

In pregnancy, term refers to the gestational period from 37 0 to 41 6 weeks. Preterm births occur between 24 0 and 36 6 weeks. 60% of the women will go into labour with in 24 hours in PPROM. After 24 hours have past without any contraction and the gestation age is more than 34 week than prostaglandins can be used to augment labour.

The incidence of 45,XO turner syndrome is around 1 in 8000 live births. Approximately 1% of monosomy X female embryos survive. Phenotypically they are females and 90% do not develop secondary sexual characteristics and hormone replacement is required.

Because of the high possibility of spontaneous resolution and the fact that if the cystic mass was verified ultrasonically, a conservative policy would almost probably be proposed for at least another six weeks, an ultrasound examination is not necessary at this time. If the cyst is still present at the six-week check, an ultrasound examination is required, as it is likely that the cyst is a benign tumour or possibly endometriosis. It’s quite improbable that it’s cancer.
Additional tests, such as computed tomography (CT) examination and potentially surgical removal or drainage, may be required in the future, although not at this time.
This cyst in a young lady is almost probably of physiological origin, especially given its size. The woman should be informed, but a follow-up examination is required. The most suitable next action is to return in six weeks, as the cyst is most likely physiologic and will most likely dissipate naturally by then. The following appointment should not take place during the same menstrual cycle.

This is VIN. Smoking is a risk factor. It is also more common in immunocompromised patients.

Before considering invasive procedures, a cervical smear must first be performed. Antibiotics can only be given when inflammation has been confirmed and culture results have identified the organism causing the inflammation. Endometrial ablation, colposcopy and vaginal US are all invasive procedures that are not relevant in the immediate management of this patient.

When it comes to questions on venous drainage the ovarian vein is likely to be a common question given its varied drainage depending on laterality. The right ovarian vein travels through the suspensory ligament of the ovary and generally joins the inferior vena cava whereas the left ovarian vein drains into the left renal vein.

The Vaginal artery, like the Uterine artery is typically a branch of the Internal Iliac artery. It can sometimes arise as a branch of the Uterine artery so it is important to read the question (if the stem stated it CAN arise from the Uterine artery then that would be true)

Girls with Turner’s syndrome (45,X) are not at risk for malignancy. Patients with feminizing testicular syndrome with XY chromosome composition and patients with mixed gonadal dysgenesis are at risk for malignancy, and bilateral gonadectomy is performed.

Trichomoniasis is caused by trichomonas. It is sexually transmitted. It is diagnosed on microscopy of vaginal discharge and cultured in Finn-Berg Whittington medium. It is characterised by valval itching, foul smelling discharge and appearance of strawberry cervix due to presence of punctate haemorrhages which occur in 2% of the cases.

When cervical biopsy or colposcopy doesn’t explain the severity of the pap smear results cone biopsy is done. In 10% of biopsies, results will be different from that of the pap smear as in this patient with pap smear showing HSIL and colposcopy showing chronic cervicitis.

In such cases conization is indicated. Repeating the pap smear could risk prompt management of a serious problem. No destructive procedure, ablation or cryotherapy, should be done before diagnosis is certain.

Preterm birth is the leading cause of neonatal morbidity and mortality not attributable to congenital anomalies or aneuploidy. It has been shown that a shortened cervix is a powerful indicator of preterm births in women with singleton and twin gestations – the shorter the cervical length, the higher the risk of spontaneous preterm birth. Ultrasound measurements of the cervix are a more accurate way of determining cervical length (CL) than using a digital method.

25 mm has been chosen as the ‘cut off’ at above which a cervix can be regarded as normal, and below which can be called short. A cervix that is less than 25 mm may be indicative of preterm birth.

Uterine blood flow increases 40-fold to approximately 700 mL/min at term, with 80 per cent of the blood distributed to the intervillous spaces of the placentae, and 20 per cent to the uterine myometrium. Weight of the uterus increases from 50–60 g prior to pregnancy to 1000 g by term.

The half life of oxytocin is 5 mins, which is why is should be started as an infusion at a low rate.

The case presented points to a diagnosis of an autoimmune thyroiditis leading to hypothyroidism. The most common form of autoimmune hypothyroidism, Hashimoto’s, often presents with a goitre, positive for antibody tests against thyroid components i.e. anti-TPO and anti-thyroglobulin. Graves disease and toxic diffuse goitre are more likely to cause hyperthyroidism. While De-Quervain’s and endemic goitre may cause hypothyroidism, they don’t result in positive antibody tests.

Pre-eclampsia is defined as hypertension of at least 140/90 mmHg recorded on at least two separate occasions and at least 4 hours apart and in the presence of at least 300 mg protein in a 24 hour collection of urine, arising de novo after the 20th week of pregnancy in a previously normotensive woman and resolving completely by the sixth postpartum week. Significant proteinuria = urinary protein: creatinine ratio >30 mg/mmol or 24-hour urine collection result shows greater than 300 mg protein.

Oesophageal atresia/TE fistula may be suspected prenatally with ultrasound findings of polyhydramnios, absence of fluid in the stomach, small sized abdomen, or the presence of a dilated proximal oesophageal pouch. An underlying disease is only found in 17 % of cases in mild polyhydramnios. In contrast, an underlying disease is detected in 91 % of cases in moderate to severe polyhydramnios. The literature lists the following potential aetiologies: fetal malformations and genetic anomalies (8–45 %), maternal diabetes mellitus (5–26 %), multiple pregnancies (8–10 %), fetal anaemia (1–11 %), other causes, e.g. viral infections, Bartter syndrome, neuromuscular disorders, maternal hypercalcemia. Viral infections which can lead to polyhydramnios include parvovirus B19, rubella, and cytomegalovirus. Other infections, e.g. toxoplasmosis and syphilis, can also cause polyhydramnios.

IUCD is a risk factor for PID and PID has the clinical picture already described. However, fibroids should also be excluded since they may present in the same way.

Retarded skeletal growth resulting in small for gestational age babies are the usual outcomes of an untreated vitamin D deficiency in pregnancy.

Symptoms associated with maternal vitamin D deficiency during pregnancy are:
– Hypocalcemia in newborn.
– Development of Rickets later in life.
– Defective tooth enamel.
– Small for gestational age due to its effect on skeletal growth
– Fetal convulsions or seizures due to hypocalcemia.

History of heavy menstrual bleeding and amenorrhoea favour the diagnosis of a fibroid uterus. All the given responses are causes for subfertility. Ectopic pregnancy presents with abdominal pain has an acute presentation. Endometriosis and adenomyosis usually don’t present with amenorrhoea or heavy bleeding respectively. PID presents with chronic pelvic pain and is not related to menstruation.

Incidental thrombocytopenia of pregnancy is the most common cause of thrombocytopenia in an otherwise uncomplicated pregnancy. The platelet count finding in this case is of little concern unless it falls below 50×109/L.

Immune thrombocytopenia is a less common cause of thrombocytopenia in pregnancy. The anti-platelet antibodies cam cross the placenta and pose a problem both to the mother and the foetus. Profound thrombocytopenia in the baby is a common finding of this condition.

Thrombocytopenia can occur in patients with severe pre-eclampsia. However, it is usually seen concurrent with other signs of severe disease.

Maternal antibodies that target the baby’s platelets can rarely cause thrombocytopenia in the mother. Instead, it can lead to severe coagulation and bleeding complications in the baby as a result of profound thrombocytopenia.

Systemic lupus erythematosus is unlikely to explain the thrombocytopenia in this patient.

Neural tube defects (NTDs) are common complex congenital malformations resulting from failure of the neural tube closure during embryogenesis. It is established that folic acid supplementation decreases the prevalence of NTDs, which has led to national public health policies regarding folic acid.

Neural tube defects (NTD) were 43% more common in Indigenous than in non-Indigenous infants in Western Australia in the 1980s, and there has been a fall in NTD overall in Western Australia since promotion of folate and voluntary fortification of food has occurred.

Women should take 5 mg/d of folic acid for the 2 months before conception and during the first trimester.

Women planning pregnancy might be exposed to medications with known antifolate activities affecting different parts of the folic acid metabolic cascade. A relatively large number of epidemiologic studies have shown an increased risk of NTDs among babies exposed in early gestation to antiepileptic drugs (carbamazepine, valproate, barbiturates), sulphonamides, or methotrexate. Hence, whenever women use these medications, or have used them near conception, they should take 5 mg/d of folic acid until the end of the first trimester of pregnancy.

Puerperal psychosis seems to be mainly hereditary and closely associated with bipolar disorder especially the manic type, rather than being a distinct condition with a group of classical symptoms or course. Postpartum psychoses typically have an abrupt onset within 2 weeks of delivery and may have rapid progression of symptoms. Fortunately, it is generally a brief condition and responds well to prompt management. If the condition is threatening the mother and/or baby’s safety, hospital admission is warranted. A patient can present with a wide variety of psychotic symptoms ranging from delusion, passivity phenomenon, catatonia, and hallucinations. While depression and mania may be the predominating features, it is not surprising to see symptoms such as confusion and stupor. Although the rate of incidence is about 1 in 1000 pregnancies, it is seen in about 20% of women who previously had bipolar episodes prior to pregnancy. It has not been shown to be linked with factors such as twin pregnancies, stillbirth, breastfeeding or being a single parent. However, it might be more commonly seen in women who are first-time mothers and pregnancy terminations.

The risk of recurrence is 20%. Unfortunately, there is no specific treatment guideline but organic causes should first be ruled out. First generation/typical anti-psychotics are often associated with extrapyramidal symptoms. Nowadays, atypical antipsychotics such as risperidone or olanzapine can be used along with lithium which is a mood stabiliser. As of now, there hasn’t been any significant side effects as a result of second generation antipsychotic use in pregnancy. While women are usually advised to stop breast-feeding, it might be unnecessary except if the mother is being treated with lithium which has been reported to cause side effects on the infants in a few instances. ECT is considered to be highly efficacious for all types of postpartum psychosis and may be necessary if the mother’s condition is life-threatening to herself or/and the baby. If untreated, puerperal psychosis might persist for 6 months or even longer.

The options of saying ‘in view of her age and previous problem, further pregnancies are out of the question’ and so is ‘By all means start another pregnancy and see how she feels about it. If she has misgivings, then have the pregnancy terminated.’ are inappropriate.

As mentioned earlier, considering there is a 20% chance of recurrence it is not correct to say that since she had good outcomes with her first pregnancy, the risk of recurrence is minimal.

Anti-psychotics are not recommended to be used routinely both during pregnancy and lactation due to the absence of long-term research on children with intrauterine and breastmilk exposure to the drugs. Hence it is not right to conclude that ‘if she gets pregnant then she should take prophylactic antipsychotics throughout the pregnancy’ as it contradicts current guidelines. Each case should be individualised and the risks compared with the benefits to decide whether anti-psychotics should be given during pregnancy. It is important to obtain informed consent from both the mother and partner with documentation.

Should the mother deteriorates during the pregnancy that she no longer is capable of making decisions about treatment, then an application for temporary guardianship should be carried out to ensure that she can be continued on the appropriate treatment.

Oogonium become Primary Oocyte via Growth/Maturation. This process is called oocytogenesis Primary Oocyte undergoes 2 meiotic divisions to become Ootids. This process is called Ootidogenesis Ootids differentiate into Ovum

It is stage 2B. Stage I: is strictly confined to the cervix; extension to the uterine corpus should be disregarded. The diagnosis of both Stages IA1 and IA2 should be based on microscopic examination of removed tissue, preferably a cone, which must include the entire lesion.
2010 FIGO classification of cervical carcinoma:
Stage IA: Invasive cancer identified only microscopically. Invasion is limited to measured stromal invasion with a maximum depth of 5 mm and no wider than 7 mm.
Stage IA1: Measured invasion of the stroma no greater than 3 mm in depth and no wider than 7 mm diameter.
Stage IA2: Measured invasion of stroma greater than 3 mm but no greater than 5 mm in depth and no wider than 7 mm in diameter.

Stage IB: Clinical lesions confined to the cervix or preclinical lesions greater than Stage IA. All gross lesions even with superficial invasion are Stage IB cancers.
Stage IB1: Clinical lesions no greater than 4 cm in size.
Stage IB2: Clinical lesions greater than 4 cm in size.

Stage II: carcinoma that extends beyond the cervix, but does not extend into the pelvic wall. The carcinoma involves the vagina, but not as far as the lower third.
Stage IIA: No obvious parametrial involvement. Involvement of up to the upper two-thirds of the vagina.
Stage IIB: Obvious parametrial involvement, but not into the pelvic sidewall.

Stage III: carcinoma that has extended into the pelvic sidewall. On rectal examination, there is no cancer-free space between the tumour and the pelvic sidewall. The tumour involves the lower third of the vagina. All cases with hydronephrosis or a non-functioning kidney are Stage III cancers.
Stage IIIA: No extension into the pelvic sidewall but involvement of the lower third of the vagina.
Stage IIIB: Extension into the pelvic sidewall or hydronephrosis or non-functioning kidney.

Stage IV: carcinoma that has extended beyond the true pelvis or has clinically involved the mucosa of the bladder and/or rectum.
Stage IVA: Spread of the tumour into adjacent pelvic organs.
Stage IVB: Spread to distant organs.

BV typically presents as an increase in vaginal discharge and vaginal malodour caused by a change in vaginal bacterial flora. PV discharge due to BV is typically grey fluid that adheres to the vaginal mucosa. BV is a polymicrobial infection. Gardnerella is the most commonly associated pathogen. Other associated bacteria include Lactobacillus species, Prevotella, Mobiluncus, Bacteroides, Peptostreptococcus, Fusobacterium, Veillonella, Eubacterium species, Mycoplasma hominis, Urea plasma urealyticum and Streptococcus viridans.

Menstrual cycle can be divided into the follicular phase and luteal phase. In the luteal phase, there is an increase in progesterone secretion and LH levels are low. If the ova is fertilized, it is implanted in the endometrium. In case of failure in fertilization, there is gradual decrease in progesterone and LH levels.

The T10 spinal segment provides the sympathetic nerve fibres that innervate the testes

Cord entanglement, a condition unique to MoMo pregnancies, occurs in 42 to 80% of the cases and it has been traditionally related to high perinatal mortality. Umbilical cord entanglement is present in all monoamniotic twins when it is systematically evaluated by ultrasound and colour Doppler. Perinatal mortality in monoamniotic twins is mainly a consequence of conjoined twins, twin reversed arterial perfusion (TRAP), discordant anomaly and spontaneous miscarriage before 20 weeks’ gestation. Expectantly managed monoamniotic twins after 20 weeks have a very good prognosis despite the finding of cord entanglement. The practice of elective very preterm delivery or other interventions to prevent cord accidents in monoamniotic twins should be re-evaluated.