Fig. 1
From: Rare myeloid sarcoma with KMT2A (MLL)-ELL fusion presenting as a vaginal wall mass
Myeloid sarcoma with initial presentation as a vaginal wall mass. Histologic sections reveal extensive infiltrate by malignant cells that are large with irregular folded nuclear contours, open chromatin, variably prominent nucleoli and abundant cytoplasm (a. HEx200, b. HE × 400). The neoplastic cells are variably positive for CD163 and weakly positive for CD68 (c. CD163 × 400, d. CD68 × 400)