Arteriectasis, subarachnoid hemorrhage in a three‐month‐old infant

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Abstract
WA three-month-old boy presented with multiple cutaneous vascular anomalies and acute subarachnoid hemorrhage. Cerebral angiography showed multiple ectatic cerebral vessels and a large basilar artery aneurysm. An autopsy confirmed the angiographic findings of widespread arteriectasis and aneurysm formation involving the cerebral, thoracic and abdominal vasculature. Microscopic study of the vessels showed marked degeneration of the media. The cause of the generalized arterial dysplasia in the case is unknown; a metabolic defect affecting early vascular development is postulated. Prompt cerebral angiography is suggested as a safe, valuable technique by which to delineate these unusual and potentially treatable causes of subarachnoid hemorrhage in children.

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