Pancytopenia with cellular marrow is seen in all, except:: (A) Megaloblastic anemia, (B) Myelodysplasia, (C) Paroxysmal nocturnal hemoglobinuria, (D) G6 PD deficiency
Answer is D. G6PD deficiency is not associated with pancytopenia and a cellular marrow. So G6PD is the single best answer of choice. Ref: Harrison's Principles of Internal Medicine, 16th Edition, Page 617; Manual of Practical Medicine By R Alagappan, 3rd Edition, Page 335