title: Cerebellopontine angle paraganglioma.
abstract: BACKGROUND
  Acoustic neuroma account for 80% of cerebellopontine angle tumors. Paraganglioma is a rare tumor in this region.
  
  
  OBJECTIVE
  The authors report a case of cerebellopontine angle paraganglioma arising from the anterior inferior cerebellar artery.
  
  
  RESULTS
  The clinical and radiologic features were indistinguishable from those of a neuroma, and only the intraoperative view showed a vascular tumor. Definitive diagnosis was made by histopathologic methods.
  
  
  CONCLUSIONS
  This unique paraganglioma location may be explained by existing embryologic data. The minimal retrosigmoid approach, assisted by endoscopy, allows safe and complete removal of the tumor.
authors.affiliation: Department of Otorhinolaryngology, CHU Pasteur, Nice, France. nicolas.guevara@wanadoo.fr
authors.forename: Nicolas
authors.initials: N
authors.lastname: Guevara
authors.forename: André
authors.initials: A
authors.lastname: Chays
authors.forename: Michel
authors.initials: M
authors.lastname: Bruzzo
authors.forename: Renaud
authors.initials: R
authors.lastname: Meller
authors.forename: Christine
authors.initials: C
authors.lastname: Fatou-Balansard
authors.forename: Jacques
authors.initials: J
authors.lastname: Magnan
mesh_terms: D002530:Cerebellopontine Angle / Q000473:pathology / Q000601:surgery*; D002531:Cerebellum / Q000098:blood supply*; D002536:Cerebral Arteries / Q000473:pathology / Q000601:surgery*; D003937:Diagnosis, Differential; D004724:Endoscopy / Q000379:methods; D006801:Humans; D007430:Intraoperative Care; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D009361:Neoplasm Invasiveness / Q000473:pathology; D009367:Neoplasm Staging; D010235:Paraganglioma / Q000473:pathology / Q000601:surgery*; D011182:Postoperative Care; D019043:Vascular Neoplasms / Q000473:pathology / Q000601:surgery*