Detection of an MN1::ETV6 Gene Fusion in a Case of Acute Myeloid Leukemia with Erythroid Differentiation: A Case Report and Review of the Literature

Figure 1

Peripheral blood and bone marrow evaluation. (a) The peripheral blood smear showed circulating blasts (arrow, Giemsa and Wright stain ×100). (b) The bone marrow biopsy was hypercellular (H & E × 20) with moderate myelofibrosis, (c) confirmed by reticulin stain (×40). (d–f) The blasts are positive for CD34, CD117, and CD71 (×40), which are suggestive for erythroid lineage. (g, h) Moreover, the blasts are negative for myeloperoxidase and positive for CD43 (×40) (i) with aberrant expression of PAX5 (×40).