Calcified Chronic Subdural Hematoma Associated with Arachnoid Cyst

ABSTRACT

The authors report a case of calcified chronic subdural hematoma with arachnoid cyst. A 45-year-old man had a 30-year history of epilepsy. Brain CT revealed lentiform calcified mass lesion with a cyst on the right temporal lobe, and an osteoplastic craniotomy was performed. The mass contained a clay-like substance with shiny crystal. And microscopically, a thick fibrous membrane with a band of calcification was seen.Postoperatively, the frequency of epolepsy decreased. To the author's knowledge, this is the first report to document calcified chronic subdural hematoma associated with arachnoid cyst.