INTERHEMISPHERIC SUBDURAL-HEMATOMA

mThe interhemispheric subdural hematoma (ISH) is a special subdural he matoma with regard to both location and symptomatology. The most widel y described clinical signs and symptoms associated with an ISH are a l ucid interval and the fair syndrome. The latter is featured by a contr alateral hemiparesis that is accentuated in the lower extremity but sp ares the face. Minor head trauma or a preexisting coagulation disorder are also often found. Nonsurgical treatment should be chosen in patie nts with little neurologic dysfunction and a stable clinical course. P atients with progressive neurologic deterioration and focal neurologic deficits should be operated on without delay. This article provides a review of 99 published cases of ISH and adds 3 cases to the existing literature.