[Anatomic study of pterygopalatine fossa under endoscope].

Objective: To provide endoscopic anatomic bony structures of pterygopalatine fossa for skull base surgery.

Methods: The bony structures of the pterygopalatine fossa were observed in ten dry skulls under endoscope.

Results: The pterygopalatine fossa showed a long and narrow cleft composed of the body and pterygoid process of sphenoid bone, the lamina perpendicular of palatine bone, and the posterior wall of maxillary sinus.