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Traumatic Aneurysms of Cerebral Vessels: A Case Study and Review of the Literature

SUNY at Buffalo, School of Medicine, V.A. Medical Center, Buffalo, New York

Margaret W. Paroski

SUNY at Buffalo, School of Medicine, V.A. Medical Center, Buffalo, New York

Mary E. Schamann

Medical Student, SUNY at Buffalo, School of Medicine, Buffalo, New York

Traumatic cerebral aneurysms (TCAs) are rare: few more than 100 cases are recorded in the world literature. TCAs are located predominantly in the supratentorial compartment and are classified as either "true" or "false." A true aneurysm is a dilation resulting from partial disruption of the arterial wall. A false aneurysm results from a full-thickness tear, with the scar from the brain tissue or an organized hematoma acting as the aneurysmal wall. The authors present a case of a false traumatic aneurysm of the pericallosal artery, which was discovered in a young patient fourteen months after a self-inflicted gunshot wound to his head. The aneurysm was an incidental finding on a CT scan performed for the investigation of his late posttraumatic seizures. Its presence was confirmed by angiography. The interval between the traumatic episode and the diagnosis of a TCA usually ranges from a few hours

to a few weeks, for most are discovered by angiography performed in the acute or subacute stage of a head injury. The long interval between the injury and the diagnosis in our case is exceptional.

A previous CT scan done four months after the injury did not reveal the aneurysm, which strongly suggests a protracted growth of the aneurysmal sac long after the trauma.

Angiology, Vol. 39, No. 7, 609-615 (1988)
DOI: 10.1177/000331978803900708


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