Features of intracranial aneurysms in infants and report of a case.

An 11-month-old girl presented with seizures, papilledema and a left hemiparesis. Radiographic examination revealed a saccular right middle cerebral-artery aneurysm. Clipping was performed 16 days after admission. At follow-up a year later there was no residual neurological deficit. Aneurysms occurring in infants are relatively large and more peripheral in location compared with adults, and frequently are accompanied by seizures. Infants' aneurysms also tend to occupy the anterior circulation distribution, and their peripheral location may make them more amenable to surgical intervention.