Abstract
Techniques of endoscopic endonasal surgery, initially developed primarily for intracranial neoplasms, have been adapted to treat a wide variety of pathologies previously approached with open craniotomy, including congenital and acquired defects of the anterior skull base. Congenital defects can lead to herniation of leptomeninges containing CSF alone or with brain tissue. Categories of encephalocele can be defined based on associated abnormal bony anatomy. The most widely used classification scheme divides anterior fossa encephaloceles into sincipital and basal categories. Sincipital encephaloceles, which are associated with a skull defect at the foramen cecum, are anterior to the cribriform plate. These can be nasofrontal, nasoethmoidal, nasoorbital, or interfrontal. Basal encephaloceles, protruding through the cribriform plate or planum sphenoidale, are classified as sphenopharyngeal, spheno-orbital, sphenomaxillary, or sphenoethmoidal.
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Schedule a callMore From: Journal of Neurological Surgery Part B: Skull Base
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