Histologic appearance of EM leukemia. (A) Hematoxylin and eosin staining of a MS along the right psoas muscle (original magnification ×40), demonstrating blasts in the skeletal muscle. Dense dermal infiltrate of monocytic leukemic cells (B; original magnification ×10; C: original magnification ×40), consistent with LC. Images were captured by the Olympus BX 41 microscope using an Olympus DP20 camera (Olympus) and imported directly as a series of .tif files.