Fig. 7.

Intraoperative view of a pretemporal approach for sphenopetroclival meningioma resection causing neuropathic pain in the right trigeminal nerve. ( A ) Wide dissection of the Sylvian fissure. ( B ) Temporal lobe was retracted posteriorly to expose the crural and ambient cisterns. ( C ) Coagulation and incision of the free edge of the tentorium after trochlear nerve dissection. ( D ) Resection of the posterior fossa tumor component with decompression of the trigeminal nerve. 1. Optic nerve; 2. optic chiasm; 3. oculomotor nerve; 4. wall of the cavernous sinus; 5. trochlear nerve; and 6. trigeminal nerve.