title: [Primary malignant hemangiopericytoma of the lung: report of a case].
mesh_terms: D006393:Hemangiopericytoma / Q000000981:diagnostic imaging / Q000473:pathology*; D006801:Humans; D008175:Lung Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D011859:Radiography