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AJNR - American Journal of Neuroradiology

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American Journal of Neuroradiology 26:58-60, January 2005
© 2005 American Society of Neuroradiology

Case Report
PEDIATRICS

Spontaneous Thrombosis of a Traumatic Posterior Cerebral Artery Aneurysm in a Child

Fanny Morón^a, Goetz Benndorf^a, Sergin Akpek^a, Robert Dempsy^b and Charles Milton Strother^a

^a Department of Radiology, Baylor College of Medicine, Methodist Hospital, Houston, TX
^b Department of Neurosurgery, University of Wisconsin, Madison, WI

Address correspondence to C. M. Strother, MD, Department of Radiology, Baylor College of Medicine, Methodist Hospital, One Baylor Plaza, Houston, TX 77030

Summary: Traumatic posterior circulation aneurysms are rare, especially in children. They are typically associated with severe trauma and are thought to result from either direct osseous injury or stretching or compression of an artery against the tentorium. They may grow, rupture, or both. Although spontaneous thrombosis may occur, it rarely results in complete occlusion. We report the spontaneous and complete thrombosis of a large posterior cerebral artery aneurysm in a child who presented after minor head trauma. Five-year follow-up documents the complete occlusion of the aneurysm.