Ependymoma

Ependymoma •A high power view of a pseudorosettes in an ependymoma. •The neoplastic cells palisade around a capillary (arrow). •These tumors can also form true rosette, that is palisading of nuclei about an empty space with a membrane bounding the lumen. (Description By:Margaret Grunnet, M.D. ) (Image Contrib. by:Margaret Grunnet, M.D. UCHC )