title: Conservative surgery for ureteral tumor associated with horseshoe kidney.
abstract: OBJECTIVE
  We demonstrate the successful conservative management of a ureteral tumor in a horseshoe kidney.
  
  
  METHODS
  A patient with low grade transitional cell carcinoma of the left lower ureter had asymptomatic horseshoe kidney. Biopsy specimen revealed low grade tumor in the lower urinary tract that was associated with a congenital abnormality. The patient underwent total ureterectomy with bladder cuff excision and ileal ureteral interposition.
  
  
  RESULTS
  With this technique renal function was preserved without resection through the isthmus of the kidney. The patient has no evidence of recurrent disease after 20-month followup by cytology, computerized tomography, excretory urogram and cystoscopy.
  
  
  CONCLUSIONS
  Organ preserving surgery is an alternative to total nephroureterectomy in lower ureteral tumors in select patients.
authors.affiliation: Department of Urology, Lahey Hitchcock Medical Center, Burlington, Massachusetts, USA.
authors.forename: R M
authors.initials: RM
authors.lastname: Mattos
authors.forename: J J
authors.initials: JJ
authors.lastname: Smith
authors.forename: J A
authors.initials: JA
authors.lastname: Libertino
mesh_terms: D002295:Carcinoma, Transitional Cell / Q000150:complications / Q000601:surgery*; D006801:Humans; D007668:Kidney / Q000002:abnormalities*; D008297:Male; D008875:Middle Aged; D014516:Ureteral Neoplasms / Q000150:complications / Q000601:surgery*