title: Benign ureteral fibrous polyp as a cause of obstruction in children.
abstract: In an 11-year-old boy with intermittent colicky flank pain for several years unilateral obstruction caused by benign ureteral fibrous polyps was found. The radiologic characteristics are discussed and the need for conservative surgery is stressed.
mesh_terms: D002648:Child; D006801:Humans; D008297:Male; D011127:Polyps / Q000150:complications* / Q000000981:diagnostic imaging; D014516:Ureteral Neoplasms / Q000150:complications* / Q000000981:diagnostic imaging; D014517:Ureteral Obstruction / Q000209:etiology*; D014567:Urography