title: [Renal colic in a patient with crossed renal ectopia].
abstract: OBJECTIVE
  To report a new case of renal colic in a patient with crossed renal ectopia and L-shaped kidney, and to perform a bibliographic review.
  
  
  RESULTS
  A 33-year-old male patient consulted for abdominal right pain. Ultrasound and CT showed a L-Shaped Kidney with left renal and ureteral stones. These stones produced obstructive left collecting system. This patient was managed with left pyelolithotomy and ureterolithotomy. The transabdominal approach was recommended to resolve this stones.
  
  
  CONCLUSIONS
  The crossed renal ectopia with fusion is a rare condition. The abnormal kidney position and the anomalous kidney supply may impede drainage from the collecting system, creating a predisposition to urinary tract infection and calculus formation. The colic in this patient sometimes is misdiagnosed how abdominal disease. The usual method of detection was excretory urography but now ultrasonography and CT have showed more cases. The indications for open surgery in treatment the stones, are generally failure of extracorporeal shock wave lithotripsy, this is common in these cases for the anatomic abnormality, and the transabdominal approach is recommended to resolve its complications in this kidneys.
authors.affiliation: Servicio de Urología, Hospital Universitario 12 de Octubre Carretera de Andalucía Km 5,4 28041 Madrid, España. vmartínezsilva@terra.es
authors.forename: Víctor
authors.initials: V
authors.lastname: Martínez silva
authors.forename: Armando
authors.initials: A
authors.lastname: Suárez Charneco
authors.forename: Guillermo
authors.initials: G
authors.lastname: Cruceyra Betriú
authors.forename: Antonio
authors.initials: A
authors.lastname: Rosino Sánchez
authors.forename: Carlos
authors.initials: C
authors.lastname: Capitán Manjón
authors.forename: José
authors.initials: J
authors.lastname: Piedra Lara
authors.forename: Oscar
authors.initials: O
authors.lastname: Leiva Galvis
mesh_terms: D000328:Adult; D003085:Colic / Q000000981:diagnostic imaging / Q000209:etiology*; D006801:Humans; D007668:Kidney / Q000002:abnormalities* / Q000000981:diagnostic imaging; D007669:Kidney Calculi / Q000150:complications* / Q000175:diagnosis / Q000601:surgery; D008297:Male; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome; D014463:Ultrasonography; D014513:Ureter / Q000002:abnormalities* / Q000000981:diagnostic imaging; D014514:Ureteral Calculi / Q000150:complications* / Q000175:diagnosis / Q000601:surgery; D014564:Urogenital Abnormalities / Q000150:complications* / Q000175:diagnosis / Q000601:surgery; D013520:Urologic Surgical Procedures / Q000379:methods