title: Retroperitoneal hemangiopericytoma.
mesh_terms: D000328:Adult; D003037:Cobalt Radioisotopes / Q000627:therapeutic use; D005260:Female; D006393:Hemangiopericytoma / Q000000981:diagnostic imaging / Q000532:radiotherapy / Q000601:surgery; D006801:Humans; D009364:Neoplasm Recurrence, Local; D011182:Postoperative Care; D011859:Radiography; D011867:Radioisotope Teletherapy; D012186:Retroperitoneal Neoplasms / Q000000981:diagnostic imaging / Q000532:radiotherapy / Q000601:surgery
chemical_list: D003037:Cobalt Radioisotopes