Bone marrow smear from a patient with erythroleukemia (FAB classification M6). (Wright-Giemsa stain.) A megaloblastoid erythroblast (blue arrow) is shown along with three myeloblasts (black arrows).
From: Brunning RD, McKenna RW. Tumors of the bone marrow. Atlas of tumor pathology (electronic fascicle), Third series, fascicle 9, 1994, Washington, DC. Armed Forces Institute of Pathology.