title: Benign ureteral lesions: rare causes of hydronephrosis in children.
abstract: Three unusual cases of hydronephrosis in children secondary to ureteral lesions, (1) congenital abnormality and (2) due to benign tumor, are presented. The radiographic findings and management are discussed. Conservative surgical management is suitable for these lesions.
mesh_terms: D002648:Child; D002675:Child, Preschool; D006801:Humans; D006869:Hydronephrosis / Q000209:etiology*; D007889:Leiomyoma / Q000150:complications; D008297:Male; D011127:Polyps / Q000150:complications; D014513:Ureter / Q000002:abnormalities; D014516:Ureteral Neoplasms / Q000150:complications*