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Olfactory Groove Meningioma

Last Updated: September 30, 2018

Endoscopic Transnasal Transcribrifom Resection of a Large Olfactory Groove Meningioma​

For general considerations, diagnosis, evaluation, indications, and preoperative considerations, please refer to the Resection of Olfactory Groove Meningioma chapter exploring the transcranial route.

Endoscopic Versus Transcranial Approach

The characteristics of the tumor, including its size, associated cerebral edema, extent of calcification, vascular encasement, and anterior cranial floor hyperostosis, can affect the choice of operative corridor. Mild vascular encasement or cerebral edema is not a contraindication for the transnasal transcribriform route. 

I consider the tumor’s size/location and the status of the patient’s olfaction to be the most important factors for choosing the final surgica...