Wegener's granulomatosis with unusual cavernous sinus and sella turcica extension

Intracerebral extension of Wegener's granulomatosis (WG) is rare. We presen t a patient with oculomotor and trochlear nerve palsy with histologically p roved WG. An MR examination revealed granulomatous tissue in nasal cavity, paranasal sinuses with meningeal infiltration, and uncommon penetration int o cavernous sinus and sella turcica. The MR images before and during pharma cological therapy are presented.