Bone marrow aspirate (A-B) and biopsy sections (C-D) in 2002 and in 2013. (A,C) Bone marrow in 2002 showing erythroid hyperplasia (myeloid to erythroid ratio 1:2), increased numbers of erythroblasts, 50% to 60% cellularity on core biopsy, and absent stainable iron. (B,D) Bone marrow in 2013 showing decreased myeloid precursors with erythroid hyperplasia, marked hypocellularity (10%), reduced megakaryocytes, and iron stain markedly increased.