title: [A case of voluminous retroperitoneal hemangiopericytoma].
mesh_terms: D002648:Child; D006393:Hemangiopericytoma / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery*; D006801:Humans; D008297:Male; D011379:Prognosis; D011859:Radiography; D012186:Retroperitoneal Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery*
vernacular_title: Su di un caso di voluminoso emangiopericitoma retroperitoneale.