Petrosquamosal suture and lamina.

  title={Petrosquamosal suture and lamina.},
  author={Belinda Proctor and Edith Nielsen and C. Proctor},
  journal={Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery},
  volume={89 3 Pt 1},
The junction of the petrosal and squamosal portions of the temporal lobe has important relationships that are of interest to the otologist. The resultant suture extends from the glaserian fissure across the top of the middle ear cleft and into the mastoid portion of the temporal bone. It may permit quick passage of infection from the middle ear to the middle cranial fossa. The petrosa may override the squama, forcing it down into the tympanum, where it could cause malleus fixation and a… CONTINUE READING