Ischemic ("diabetic") cavernous sinus syndrome.

A 65-year-old diabetic woman presented with an acute cavernous sinus syndrome involving the right third, fifth, and sixth cranial nerves. The complete neuro-ophthalmic workup included high-resolution computed tomography, angiography, lumbar puncture, and laboratory studies, all of which were unrevealing. The cranial nerve palsies spontaneously resolved in 10 weeks, consistent with an ischemic etiology.