title: Two unusual causes of ureteric indentation.
abstract: Causes for ureteral indentation are legion and mostly well documented. Two unusual cases which are believed to be undocumented are described. One was produced by an inferior vena cava clip and the other by a vaginal tampon. Neither produced significant ureteric obstruction but both resulted in a diagnostic conundrum.
mesh_terms: D000293:Adolescent; D000328:Adult; D001807:Blood Vessel Prosthesis / Q000009:adverse effects*; D005260:Female; D006801:Humans; D011138:Polytetrafluoroethylene; D011859:Radiography; D013630:Tampons, Surgical; D014513:Ureter / Q000098:blood supply; D014517:Ureteral Obstruction / Q000000981:diagnostic imaging* / Q000209:etiology; D014682:Vena Cava, Inferior / Q000000981:diagnostic imaging*
chemical_list: D011138:Polytetrafluoroethylene