title: Leiomyosarcoma of the kidney: report of two cases with common angiographic findings.
abstract: Two cases of renal leiomyosarcoma are described. At angiography both cases presented common findings consisting of: (1) central hypovascularity surrounded by peripheral tumor neovascularity and (2) oval-shaped areas that rapidly filled with contrast medium. This angiographic appearance, although not previously described in such tumors, cannot be claimed to offer a key to preoperative diagnosis because it may be found in the more common hypernephromas with central necrosis.
mesh_terms: D000328:Adult; D000368:Aged; D000792:Angiography; D005260:Female; D006801:Humans; D007680:Kidney Neoplasms / Q000098:blood supply / Q000000981:diagnostic imaging*; D007890:Leiomyosarcoma / Q000098:blood supply / Q000000981:diagnostic imaging*; D008297:Male