[Chordoma of the base of the skull. A case report].

Chordomas of the skull base are neoplasms derived from persistent embryologic remnants. In spite of its histologic classification as benign tumors, the site and the adverse possibilities of the management its behaviour is malignant like. The case here referred to was localized in the basioccipital region and protruded in the rhinopharynx. Perusal of the bibliography and prognostic assessment of these type of patients.