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.
Management of concomitant metabolic encephalopathy and meningioma with vasogenic edema and impending herniation.
Ghaly RF, Haroutunian A, Candido KD, Knezevic NN. Surg Neurol Int. 2018;9:25.
The imaging demonstrated a large frontal meningioma with a significant midline shift with laboratory findings suggestive of severe hypothyroidism and myxedema coma.
