title: Hydronephrosis by an aberrant renal artery: a case report.
abstract: Ureteropelvic junction obstruction is usually intrinsic and is most common in children. Aberrant renal arteries are present in about 30% of individuals. Aberrant renal arteries to the inferior pole cross anteriorly to the ureter and may cause hydronephrosis. To the best of our knowledge, although there are some papers about aberrant renal arteries producing ureteropelvic junction obstruction, there is no report of a case which is diagnosed by the new modalities, such as computed tomography angiogram (CTA) or magnetic resonance angiogram (MRA). We describe a 36-year-old woman with right hydronephrosis. Kidney ultrasonogram and excretory urogram revealed right hydronephrosis. CTA and MRA clearly displayed an aberrant renal artery and hydronephrosis. The patient underwent surgical exploration. For the evaluation of hydronephrosis by an aberrant renal artery, use of CTA and MRA is advocated.
authors.affiliation: Department of Internal Medicine, Chonnam National University Medical School, Hak-dong 8, Dong-gu, Gwangju 501-757, Korea.
authors.forename: Byoung Seok
authors.initials: BS
authors.lastname: Park
authors.forename: Taek Kyun
authors.initials: TK
authors.lastname: Jeong
authors.forename: Seong Kwon
authors.initials: SK
authors.lastname: Ma
authors.forename: Soo Wan
authors.initials: SW
authors.lastname: Kim
authors.forename: Nam Ho
authors.initials: NH
authors.lastname: Kim
authors.forename: Ki Chul
authors.initials: KC
authors.lastname: Choi
authors.forename: Yong Yeon
authors.initials: YY
authors.lastname: Jeong
mesh_terms: D000328:Adult; D005260:Female; D021501:Flank Pain / Q000175:diagnosis / Q000209:etiology; D005500:Follow-Up Studies; D006801:Humans; D006869:Hydronephrosis / Q000175:diagnosis* / Q000209:etiology / Q000601:surgery; D018810:Magnetic Resonance Angiography / Q000379:methods; D012077:Renal Artery / Q000002:abnormalities* / Q000000981:diagnostic imaging; D018570:Risk Assessment; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome; D014517:Ureteral Obstruction / Q000150:complications* / Q000000981:diagnostic imaging / Q000601:surgery; D014567:Urography / Q000379:methods; D013520:Urologic Surgical Procedures / Q000379:methods