Adult aqueduct stenosis and diencephalic epilepsy. A case report.

A white male developed severe headaches at the age of 31 years. Aqueduct stenosis with hydrocephalus was diagnosed. Some months after surgery (shunt) his behaviour altered and eventually he became mute and akinetic. Frequent episodes of marked autonomic over-activity occurred. The clinical and necropsy findings of aqueduct stenosis, hydrocephalus and periaqueductal gliosis, led us to believe that these indicated diencephalic epilepsy.