Malignant Mesenteric Perivascular Epithelioid Cell Neoplasm Presenting as an Intra-Abdominal Fistula in a 49-Year-Old Female
Figure 4
(a) Low power showing an epithelioid tumor with a hemangiopericytoma-like vascular pattern and diffuse pleomorphism. (b) Higher power showing marked nuclear atypia in the form of hyperchromasia, coarse chromatin, prominent nucleoli, and pleomorphism with atypical mitotic figures.
