title: [Applied anatomy of abut structures of internal auditory meatus (IAM) through middle cranial fossa approach].
abstract: OBJECTIVE
  To provide anatomical basis for operation of internal auditory meatus(IAM). Correlation structures with IAM were measured according to sign of hiatus of facial nerve.
  
  
  METHODS
  These structures include spinous foramen, superficial geater petrosal nerve, superficial lesser petrosal nerve, hiatus of facial nerve were measured on 24 wet cranial bone (48 sides).
  
  
  RESULTS
  It is demonstrated that 8.3% geniculate ganglion and labyrinth segment of facial nerve Variation which distance from hiatus of facial nerve to geniculate ganglion is distinct.
  
  
  CONCLUSIONS
  Our data will be very holpful for location of IAM during operation via middle cranial fossa approach.
authors.affiliation: Department of Otorhinolaryngology, Nanfang Hospital, the First Military Medical University, Guangzhou 510515.
authors.forename: Hexin
authors.initials: H
authors.lastname: Chen
authors.forename: Weidong
authors.initials: W
authors.lastname: Li
authors.forename: Shizhen
authors.initials: S
authors.lastname: Zhong
authors.forename: Geng
authors.initials: G
authors.lastname: Xu
mesh_terms: D035301:Cranial Fossa, Middle / Q000033:anatomy & histology* / Q000601:surgery; D005154:Facial Nerve / Q000033:anatomy & histology* / Q000601:surgery; D006801:Humans; D013701:Temporal Bone / Q000033:anatomy & histology* / Q000601:surgery