Optical microscopy morphology of peripheral and bone marrow hematopoiesis.

Binucleate erythroblast in peripheral blood (A). Erythroid hyperplasia with marked abnormalities (binucleate, trinucleate, and multinucleate late erythroblasts) (B,C,D). Abnormal erythroblasts showing anomalous distribution of chromatin (C,D), binucleate erythroblasts, and isolated trinuclear, tetranuclear (B), and aberrant multinuclear erythroblasts (B,D). May-Grünwald-Giemsa stain. Original magnifications: A and D, × 400; B, × 200; C, × 1000.