title: Lumbar angiography in the diagnosis of primary retroperitoneal tumors.
mesh_terms: D000008:Abdominal Neoplasms / Q000000981:diagnostic imaging; D000368:Aged; D001027:Aortography; D003937:Diagnosis, Differential; D006801:Humans; D008067:Lipoma / Q000000981:diagnostic imaging; D008159:Lumbar Vertebrae; D008297:Male; D008722:Methods; D008875:Middle Aged; D011379:Prognosis; D012186:Retroperitoneal Neoplasms / Q000000981:diagnostic imaging* / Q000601:surgery; D012509:Sarcoma / Q000000981:diagnostic imaging; D013131:Spine / Q000098:blood supply*