INTERHEMISPHERIC SUBDURAL-HEMATOMA IN ADU LTS - REPORT OF A CASE WITHA REVIEW OF THE LITERATURE

Acute subdural hematomas located in the interhemispheric fissure are c onsiderably less common in adults than in children. A case in an adult is reported, and the relevant literature is reviewed. Males aged 50 t o 69 years with bleeding disorders are at highest risk. Most cases occ ur after a minor head injury responsible for lesions of the corticodur al veins that drain into the superior longitudinal sinus. Falx cerebri syndrome is the usual clinical picture. Impairment of consciousness, headache, and/or seizures occur in some patients. Cerebral computed to mography establishes the diagnosis. Arteriography should be performed to look for an aneurysm when there is no history of head injury. The m ortality rate has been estimated at 28%. Craniotomy with extensive exp osure of the longitudinal cerebral fissure is required in severe forms . In patients with mild clinical manifestations, watchful waiting is a ppropriate.