Endoscopic Endonasal Resection of a Groove Meningioma with Olfactory Preservation

Abstract

Background: There are few cases in the literature demonstrating resection of olfactory groove meningiomas with olfactory preservation. Although the standard treatment for olfactory groove meningiomas uses traditional transcranial routes, the endoscopic endonasal approach (EEA) has been used with increased frequency. One of the main benefits of the EEA is the lack of frontal lobe retraction required to access the lesion. Preservation of olfaction can be challenging using either approach, but especially so for the EEA, due not only to the location of the olfactory nerves in relation to the tumor, but also to the transgression of olfactory epithelium during the approach.