Veins of pterygopalatine fossa (English)

The main venous structure seen in the pterygopalatine fossa is the pterygoid venous plexus. This plexus drains to multiple different venous structures: posteriorly to the greater palatine vein, that accompanies the course of the maxillary artery; anteroinferiorly to the facial and deep facial veins; and medially to the cavernous sinus, which is an intracranial venous structure located adjacent to the sella turcica.