Middle Cranial Fossa Approach to the Petrous Pyramid

Endoscope-Assisted Visualization of the Internal Auditory Canal Using the Middle Fossa Approach

“…Although practiced for nearly 50 years (11)(12)(13), the MF approach to vestibular schwannoma resection still results in FIG. 2.…”

“…Although practiced for nearly 50 years (11–13), the MF approach to vestibular schwannoma resection still results in difficulty in visualizing structures of the IAC fundus because of the very close proximity of the bony labyrinth, with the cochlea abutting anteriorly and the vestibular and superior semicircular canal posteriorly. The inferior fundus is very difficult to visualize clearly, especially in tumors that extend to the fundus with loss of a T2 fundal cap on preoperative imaging.…”

Custom-tailored transdural anterior transpetrosal approach to ventral pons and retroclival regions

“…2,5,[12][13][14] This means of access is a further development of the middle fossa approach to the petrous pyramid and the cerebellopontine angle, as already described by House 7 and colleagues 5,7-10 20 years ago. The essence of the anterior petrosectomy approach is extradural resection of the petrous apex and subsequent basal opening of the dura of the middle fossa, ligation of the SPS, and division of the tent.…”

Transsphenoid Endoscopic Management of Petrous Apex Cholesterol Granuloma

“…The middle fossa approach to lesions of the petrous pyramid was described by House 11 . Exteriorization of these lesions is achieved by the creation of a fistula from the lesion to the eustachian tube, with a Silastic stent used to maintain patency of the tract.…”