title: Renal cirsoid arteriovenous malformation masquerading as neoplasia.
abstract: A woman with renal colic and microscopic hematuria had filling defects in the left renal collecting system detected on excretory urography. A nephrectomy, performed because of suspected malignancy, might have been averted by renal angiography.
authors.affiliation: Department of Radiology, University Hospital, Saskatoon, Saskatchewan.
authors.forename: K
authors.initials: K
authors.lastname: Silverthorn
authors.forename: D
authors.initials: D
authors.lastname: George
mesh_terms: D000328:Adult; D001165:Arteriovenous Malformations / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007668:Kidney / Q000098:blood supply* / Q000000981:diagnostic imaging / Q000473:pathology; D011859:Radiography