FCEM2-0788

FCEM2-0788

You review the blood results of a 65-year-old woman. Her full blood count is shown below:

Hb 11.9 g/dl (13-17 g/dl)
MCV 82 fl (80-100 fl)
WCC 18.4 x 109/l (4-11 x 109/l)
Neut 4.0 x 109/l (2.5-7.5 x 109/l)
Lymph 13.3 x 109/l (1.3-3.5 x 109/l)
Platelets 156 x 109/l (150-400 x 109/l)

What is the SINGLE most likely diagnosis?