A rare, mostly benign, primary tumor of the meninges (arachnoid cap cells), usually located in the supratentorial compartment, commonly appearing in the sixth and seventh decade of life, clinically silent in most cases or causing hyperostosis close to the tumor and resulting in focal bulging and localized pain in less than 10% of cases. Additional features may include headache, seizures, gradual personality changes (apathy and dementia), anosmia, impaired vision, exophthalmos, hearing loss, ataxia, dysmetria, hypotonia, nystagmus, and rarely spontaneous bleeding.
Trigeminal trophic syndrome of all three nerve branches: an underrecognized complication after brain surgery.
Luksic I, Luksic I, Sestan-Crnek S, Virag M, Macan D. J Neurosurg. 2008;108(1):170-3.
Three years after a second surgical treatment for a meningioma of the cerebellopontine angle, this 32-year-old woman developed TTS with progressive skin ulcers on the left ala nasi and the left side of the forehead and chin.