title: Ureteral reconstruction for retroperitoneal tumors in children.
abstract: OBJECTIVE
  Removal of solid tumors of the pelvis and abdominal cavity may require resection of an involved ureteral segment. Ureteral stricture can also be a result of intense therapy. We present our experience with urinary reconstruction in this situation.
  
  
  METHODS
  A retrospective review of pediatric oncology patients with solid abdominal/pelvic tumors who underwent a ureteral reconstructive procedure was done. Institutional review board wavier was obtained for the review. Patient data were collected on diagnosis, procedures performed, renal function, and follow-up.
  
  
  RESULTS
  Thirteen patients were identified: 8 male and 5 female. The mean age at surgery was 10.1 years. The most common reason for surgery was en bloc tumor resection (n = 8) followed by ureteral strictures (n = 3). The Boari flap, Leadbetter-Politano reimplantation, and psoas hitch were the most common procedures preformed. Follow-up studies included measurements of serum urea nitrogen/creatinine levels as well as renal scans to assess functional status; 2 patients had elevated serum urea nitrogen/creatinine levels at follow-up. The mean follow-up time was 18 months; 4 patients died-none was secondary to renal complications. There were no local tumor recurrences.
  
  
  CONCLUSIONS
  Abdominal and pelvic tumors frequently involve the ureter, and their removal should not necessitate acceptance of poor surgical margins. Complete surgical resection of tumor including involved ureteral segments can prolong survival in patients with extensive abdominopelvic cancers. In another group of patients, ureteral strictures arise secondary to therapy and reconstruction may preserve renal function.
authors.affiliation: Division of Pediatric Surgery, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY 10021, USA.
authors.forename: Daniel N
authors.initials: DN
authors.lastname: Rutigliano
authors.forename: Anthony
authors.initials: A
authors.lastname: Georges
authors.forename: Suzanne L
authors.initials: SL
authors.lastname: Wolden
authors.forename: Mark L
authors.initials: ML
authors.lastname: Kayton
authors.forename: Paul
authors.initials: P
authors.lastname: Meyers
authors.forename: Michael P
authors.initials: MP
authors.lastname: La Quaglia
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D015331:Cohort Studies; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D009361:Neoplasm Invasiveness / Q000473:pathology*; D009447:Neuroblastoma / Q000401:mortality / Q000473:pathology / Q000601:surgery; D019651:Plastic Surgery Procedures / Q000379:methods*; D012186:Retroperitoneal Neoplasms / Q000401:mortality / Q000473:pathology* / Q000601:surgery*; D012189:Retrospective Studies; D012208:Rhabdomyosarcoma / Q000401:mortality / Q000473:pathology / Q000601:surgery; D018570:Risk Assessment; D012512:Sarcoma, Ewing / Q000401:mortality / Q000473:pathology / Q000601:surgery; D012737:Sex Factors; D015996:Survival Rate; D016896:Treatment Outcome; D014515:Ureteral Diseases / Q000473:pathology / Q000601:surgery*; D013520:Urologic Surgical Procedures / Q000379:methods