title: A novel roentgenographic observation in a hemangiopericytoma.
abstract: Hemangiopericytoma, an unusual tumor, is best demonstrated by angiography. A serendipitous observation was made during angiography in the case presented, which established the diagnosis of a blood vessel tumor before the ultimate biopsy was done.
mesh_terms: D006393:Hemangiopericytoma / Q000098:blood supply / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011859:Radiography; D012983:Soft Tissue Neoplasms / Q000098:blood supply / Q000000981:diagnostic imaging*