Over the past 100 years, the evaluation and management of lateral skull base tumors have evolved tremendously. While most pathology involving the temporal bone and cerebellopontine angle is histologically benign, significant morbidity may occur as a result of disease progression or treatment. At the turn of the twentieth century, mortality from cerebellopontine angle tumor extirpation exceeded ...

AIM The microanatomy of the abducens nerve (AN) is important for clinical reasons and surgical approaches as it is located in the petroclival region. The incidence of branching and duplication of the abducens nerve are unknown and mechanisms relating to paralysis of the nerve in indirect conditions are yet to be clarified. MATERIAL AND METHODS Microanatomical details (anatomical observations ...

Parasellar lesions comprise a wide variety of inflammatory and benign or malignant tumorous processes. Each of these lesions requires individual considerations regarding the best management. Percutaneous biopsy through the foramen ovale should be performed in cases of insufficiency of imaging findings to avoid unnecessary open procedures or inappropriate treatment and to guide therapeutic decis...

Objective To evaluate facial nerve function after excision of petroclival/anterior cerebellopontine angle (CPA) meningiomas by the extended translabyrinthine (EXTL) approach and compare these with outcomes after the transcochlear and transotic approaches. Design Retrospective chart review. Setting/Participants A search of archived surgical cases at a single institution between January 1, 1995, ...

Lesions of the petroclival area have long been considered by neurosurgeons as unreachable,I,2 and until recently, patients afflicted with meningiomas in this region have carried poor prognoses, usually with a lethal outcome.1,39 Refined approaches and advances in microsurgery techniques, along with the aid of intraoperative monitoring, have encouraged neurosurgeons to reevaluate the ef1icacy of...

A 22 years man presented with aural fullness and hearing impairment in his right ear for one year. Otoscopy showed middle ear effusion in the right ear and nasopharyngoscopy revealed a protruding mass on the right side of the nasopharynx. Computed tomography of the nasopharynx showed a large intracranial tumor extending to the infratemporal region via foramen ovale. The patient received staged ...