[Approach to the clivus via maxillary bipartition. Report of a case of chordoma].

Large tumors of the clivus require a combination of several approaches. We review the technique previously described; they cross numerous anatomical structures and include a transcranial approach. We propose to combine transoral and transrhino-septal approaches by means of maxillary bipartition which allows good exposure and an easy removal in a case of chordoma of the clivus.