Introduction

Abstract

The anatomy of the cavernous sinus is extremely interesting but owing to its tridimensional character rather complex and difficult to understand. There is considerable difference between studying these anatomical relationships with the naked eye and studying them under the microscope. Surgically valid descriptions of the cavernous sinus anatomy have begun to appear only since magnification has become available. And again, examining a fresh cadaver specimen of the parasellar region with arterial and venous injection is vastly different to examination without injection.