ANTERIOR CLINOID MUCOCELE MASQUERADING AS RETROBULBAR NEURITIS

Mucoceles arising from the anterior clinoid is rare. Although intrinsi cally benign, mucoceles in the sphenoid sinus (anterior clinoid varian t) can lead to complications due to their proximity to other structure s. We present a case of a young man whose visual complaints were typic al for retrobulbar optic neuritis. Results of radiologic tests for dia gnosis led us to the early detection of a surgically treatable conditi on, a sphenoid sinus mucocele (anterior clinoid variant). Early surger y was helpful in ameliorating the symptoms, leading to full recovery o f visual function. The clinician should be aware of this rare entity w ith its presentation in a wide variety of signs and symptoms.