Intradural clival chordoma: a rare pathological entity.

Chordomas constitute about 1% of intracranial tumors. They are generally extradural destroying the bone. Intradural chordomas are very rare. We present one such case of a clival intradural chordoma who presented with a left trigeminal nerve sensory neuropathy. The lesion was totally excised uneventfully via a retromastoid suboccipital approach. There was no recurrence of the lesion at 1-year follow-up. Characteristics of intradural chordoma and its close differential ecchordosis physaliphora are reviewed in this article.