A Case of Pelvic Hemangiopericytoma / 대한비뇨기과학회지

Hemangiopericytoma is an uncommon mesenchymal tumor that may be benign or malignant. This tumor is composed of proliferating capillaries and spindle-shaped cells known as the pericytes of Zimmermann. Since all capillaries have pericytes, hemangiopericytoma can be found anywhere In the body. We report a case of malignant hemangiopericytoma in the pelvic cavity which was treated by radical excision and adjutant radiotherapy and discuss the clinicopathological feature, prognosis, and therapy of this lesson.