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Published on: February 3, 2016
Traumatic arteriovenous fistula of the superficial temporal artery: a histopathologic report
Anna M Moran1, Thomas S Aleman, Roberta E Gausas
1*Department of Pathology and Laboratory Medicine, Penn Presbyterian Medical Center, University of Pennsylvania Health System, Philadelphia, Pennsylvania, U.S.A.; and †Department of Ophthalmology, Scheie Eye Institute, University of Pennsylvania, Philadelphia, Pennsylvania, U.S.A.
Abstract:
Traumatic aneurysms, pseudoaneurysms, and arteriovenous (AV) fistulas of the superficial temporal artery (STA) are uncommon, accounting for only 0.5% to 2.0% of all aneurysms subjected to surgery. In the literature that relates to the STA, the general term "aneurysm following traumatic injury" often includes a wide array of pathologic entities, including proper aneurysms, pseudoaneurysms, and AV fistulas. In 75% of cases, such aneurysms are due to blunt trauma. Within this group, STA AV fistulas constitute an exceedingly rare subset. The case presents the occurrence of a traumatic AV fistula of the STA following blunt trauma (karate kick) and provides the first description of the histologic appearance of this lesion.
