A Sporadic Cisternal Cystic Oculomotor Schwannoma-Case Report and Review of Literature.

Schwannoma arising from a pure motor cranial nerve in sporadic cases is a rare finding. We report adult female patient presented with a seizure without oculomotor palsy. On evaluation, she was diagnosed with cystic oculomotor schwannoma and underwent surgery.

A Case of Evolving Bilateral Sphenoidal Meningoencephaloceles: Case Report and Review of the Literature.

Background: The evolution of sphenoid sinus meningoencephaloceles and cerebrospinal fluid (CSF) rhinorrhea is poorly understood.

Case Description: We present a case demonstrating the gradual evolution of encephaloceles from both the lateral walls of a previously normal sphenoid sinus in a patient with dural arteriovenous fistula; the CSF leak that developed after staged embolization of the dural arteriovenous fistula was managed by an endoscopic endonasal transpterygoid approach.

Conclusions: We suggest that over a period of time, chronic elevation of intracranial pressure can result in gradual erosion of the lateral wall of the sphenoid with development of meningoencephaloceles and CSF leaks.