title: The preauricular subtemporal approach for transcranial petrous apex tumors.
abstract: OBJECTIVE
  To review our series of 51 patients with transcranial petrous apex tumors who were surgically managed through a preauricular subtemporal approach.
  
  
  METHODS
  A retrospective analysis of patient medical records.
  
  
  METHODS
  Tertiary care academic medical center.
  
  
  METHODS
  All patients with transcranial petrous apex tumors who were surgically treated between July 1988 and July 2005 with a preauricular subtemporal approach.
  
  
  METHODS
  The preauricular subtemporal approach with preservation of hearing was used in all 51 cases.
  
  
  METHODS
  The degree of tumor resection and long-term results.
  
  
  RESULTS
  Total tumor resection was achieved in 45 patients, and tumor was left in the cavernous sinus in 6 cases. Magnetic resonance imaging surveillance revealed no recurrent tumor in 36 patients, stable residual disease in 5 cases, and regrowth of tumor in 10 individuals (mean follow-up, 8.8 yr).
  
  
  CONCLUSIONS
  The postauricular infratemporal fossa approach allows adequate exposure to the petrous apex but with the expense of conductive hearing deficit. The preauricular subtemporal approach allows wide access for transcranial petrous apex tumors with preservation of hearing. Tumor control using this approach was achieved in 41 (80%) of 51 of the patients in this series.
authors.affiliation: The Loyola Center for Crania Base Surgery, Loyola University Medical Center, Maywood, Illinois, USA. jleonet@lumc.edu
authors.forename: John P
authors.initials: JP
authors.lastname: Leonetti
authors.forename: Douglas E
authors.initials: DE
authors.lastname: Anderson
authors.forename: Sam J
authors.initials: SJ
authors.lastname: Marzo
authors.forename: Thomas C
authors.initials: TC
authors.lastname: Origitano
authors.forename: Rita
authors.initials: R
authors.lastname: Schuman
mesh_terms: D000328:Adult; D000368:Aged; D002813:Chondrosarcoma / Q000473:pathology / Q000601:surgery; D002817:Chordoma / Q000473:pathology / Q000601:surgery; D003390:Cranial Nerve Neoplasms / Q000473:pathology / Q000601:surgery*; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008577:Meningeal Neoplasms / Q000473:pathology / Q000601:surgery*; D008579:Meningioma / Q000473:pathology / Q000601:surgery*; D008875:Middle Aged; D009463:Neuroma / Q000473:pathology / Q000601:surgery*; D019635:Neurosurgical Procedures / Q000379:methods*; D018215:Osteoblastoma / Q000473:pathology / Q000601:surgery; D010579:Petrous Bone / Q000473:pathology / Q000601:surgery*; D011183:Postoperative Complications; D012189:Retrospective Studies; D016896:Treatment Outcome; D014276:Trigeminal Nerve / Q000473:pathology / Q000601:surgery