Conventional hemangiopericytoma: modern analysis of outcome.

BACKGROUND Hemangiopericytoma (HPC) is a rare vascular tumor, and pathologic distinction from synovial sarcoma and solitary fibrous tumor is a significant problem due to shared histologic features. In the current report the authors defined the clinical behavior and prognosis for patients with HPC. METHODS Between July 1982 and February 1998, 62 patients… (More)