title: Laparoscopic resection of prescral and obturator fossa schwannoma.
abstract: BACKGROUND
  Pelvic Schwannoma is an extremely rare event. Laparoscopic approach for radical resection on pelvic region already has been described in the literature. However, with better image quality provided by optic in the laparoscopy we can assure an improvement in this kind of approach for tumor resection.
  
  
  OBJECTIVE
  Our goal is to describe and evaluate the results of one laparoscopic resection of presacral and obturator fossa tumor.
  
  
  METHODS
  We present a case of a 60-year-old man with progressive congestion in the right inferior member and CT scan revealing a mass with miscellaneous content located behind of the right iliac vessels and right obturator nerve. Exploratory transperitoneal laparoscopy was indicated. During laparoscopy it was possible to see the mass between the spermatic cord and external iliac artery. We made the identification and preservation of iliac vessels and obturator nerve. Resection of the tumor was performed carefully, allowing the safe removal of the specimen with complete preservation of the iliac vessels and obturator nerve.
  
  
  RESULTS
  Mean operative time of 150 minutes. No perioperative complications occurred. Two days of hospital stay. Posterior histopathological exam confirmed that the mass was a Schwannoma.
  
  
  CONCLUSIONS
  The maximization of the image in the laparoscopic surgery offers dexterity and capacity of dissection required for complex mass dissection on pelvic region.
authors.affiliation: Departamento de Urologia, Faculdade de Medicina do ABC, Santo André, São Paulo, Brasil.
authors.forename: Marcos
authors.initials: M
authors.lastname: Tobias-Machado
authors.affiliation: Departamento de Urologia, Faculdade de Medicina do ABC, Santo André, São Paulo, Brasil.
authors.forename: Alexandre Kiyoshi
authors.initials: AK
authors.lastname: Hidaka
authors.affiliation: Departamento de Urologia, Faculdade de Medicina do ABC, Santo André, São Paulo, Brasil.
authors.forename: Leticia Lumy Kanawa
authors.initials: LLK
authors.lastname: Sato
authors.affiliation: Departamento de Urologia, Faculdade de Medicina do ABC, Santo André, São Paulo, Brasil.
authors.forename: Igor Nunes
authors.initials: IN
authors.lastname: Silva
authors.affiliation: Departamento de Urologia, Faculdade de Medicina do ABC, Santo André, São Paulo, Brasil.
authors.forename: Pablo Aloisio Lima
authors.initials: PAL
authors.lastname: Mattos
authors.affiliation: Departamento de Urologia, Faculdade de Medicina do ABC, Santo André, São Paulo, Brasil.
authors.forename: Antonio Carlos Lima
authors.initials: ACL
authors.lastname: Pompeo
mesh_terms: D006801:Humans; D010535:Laparoscopy; D008197:Lymph Node Excision; D008297:Male; D008875:Middle Aged; D009442:Neurilemmoma / Q000000981:diagnostic imaging / Q000601:surgery*; D009776:Obturator Nerve; D010386:Pelvic Neoplasms / Q000000981:diagnostic imaging / Q000601:surgery*; D013085:Spermatic Cord; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome