Tuberous sclerosis complex with multiple intracranial aneurysms in an infant.

Tuberous sclerosis complex is a protean, genetically determined disease that may involve any organ or tissue and lead to a great number of signs and clinical features. Occlusive vascular disease and aneurysms of the cerebral and visceral arteries were described in these patients. We report on an 8-month-old boy who manifested tuberous sclerosis complex with multiple intracranial aneurysms involving the internal carotid artery and middle cerebral artery. The unusual features of our case favor the concepts of the presence of an arterial dysplasia in tuberous sclerosis complex, and of developmental defects as the cause of intracranial aneurysms.