Length of vidian canal

The length of vidian canal was measured in axial plane from posterior wall of pterygopalatine fossa to the posterior limit of carotid canal. The length was measured along medial aspect of vidian canal.

Relationship of vidian canal with petrous part of internal carotid artery and the relationship of anterior end of vidian canal to the internal carotid artery (petrous part) in the coronal plane was noted. Expected locations were inferolateral, inferior and inferomedial.