MRCP2-2200

MRCP2-2200

A 35-year-old painter visits a new GP for a routine check-up. Past medical history of note includes a recent diagnosis of eczema. Some blood tests are ordered, and the GP contacts you to discuss the results. The clinical examination was unremarkable.
The investigations reveal the following:
Haemoglobin (Hb) 110 g/l 135–175 g/l
Mean corpuscular volume (MCV) 70 fl 76–98 fl
White cell count (WCC) 4.5 × 109/l 4.0–11.0 × 109/l
Platelets (PLT) 200 × 109/l 150–400 × 109/l
Ferritin 280 µgl/l 20–250 µg/l
Hb electrophoresis Normal
What is the most likely diagnosis?