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Neuronavigation-guided endoscopic endonasal excision of schwannoma-like chordoma of the Meckel's cave: A case report.

Chordomas are locally aggressive malignant tumors due to their recurrence potential, originating from the embryonic notochord remnants. Chordomas can originate anywhere on the axial skeleton. They are extradural and are spread by bone destruction. Chordomas are locally aggressive tumors which invade the dura mater, and may also present with secondary intradural growth. The Meckel's cave location of chordomas has been very rarely reported in the literature. Chordomas located in the Meckel's cave can be radiologically confused with trigeminal schwannomas. Herein, we report a case of chordoma located in the Meckel's cave which was successfully excised through neuronavigation-guided endoscopic endonasal excision which is commonly used in the skull base surgeries.