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. Author manuscript; available in PMC: 2012 Jun 19.
Published in final edited form as: Cancer. 2009 Dec 1;115(23):5481–5489. doi: 10.1002/cncr.24610

Image 1. Morphologic features of blasts with prominent nuclear invaginations (so-called cuplike nuclei).

Image 1

(A and B). Blasts are medium-sized with prominent nuclear invagination [resembling a cup or the mouth of a fish (arrow)], scant to moderate cytoplasm containing a few azurophilic granules (Wright-Giemsa bone marrow aspirate smear, Olympus, × 1,000); (C). Blasts are myeloperoxidase positive (Olympus, × 1,000);