Chondroid Chordoma of the Sphenoid Sinus- a rare tumour

摘要

Chordomas of the skull base are extremely rare intracranial malignancies that arise from ectopic remnants of embryonal notochord. Chondroid chordoma is a subtype of chordoma possessing elements of both chordoma and cartilaginous tissue with better prognosis than classic (nonchondroid) chordomas. We herein report a case of chondroid chordoma of sphenoid sinus in a 46 years old female. We believe this is the first case of chondroid chordoma involving only the sphenoid sinus.