Unusual T-Lymphoblastic Blast Phase of Chronic Myelogenous Leukemia

Figure 1

Bone marrow biopsy of Case 1. The bone marrow demonstrated morphologic features of chronic myelogenous leukemia and increased blasts ((a) H&E: 200x; (b) H&E: 400x) with a T-lymphoblastic immunophenotype ((c) CD5: 400x; (d) TdT: 400x).

(a)

(b)

(c)

(d)