• Akira Wada, Arisa Umesaki, Yuta Kawauchi, Minako Kubo, and Tomoaki Terada.
• Department of Neurosurgery, Ebara Hospital, Tokyo Metropolitan Health and Hospitals Corporation, Tokyo, Japan; Department of Neurosurgery, Showa University Koto Toyosu Hospital, Tokyo, Japan. Electronic address: akirawada21@gmail.com.
• World Neurosurg. 2020 Dec 1; 144: 112-114.

BackgroundAlthough traumatic dural arteriovenous fistula (AVF) is a rare condition, dural injury associated with skull fracture is one of the major factors for the formation of dural AVF at the skull fracture area. We report a case of de novo intraosseous AVF around the anterior condylar confluence after head injury associated with skull base fracture.Case DescriptionA woman in her 70s presented with pulsatile tinnitus 3 months after cerebellar infarction and occipital bone fracture. The appearance of de novo intraosseous AVF was confirmed by magnetic resonance imaging and magnetic resonance angiography and treated with coil embolization, which led to symptomatic relief without recurrence on follow-up.ConclusionsThere is no previous report to our knowledge of intraosseous AVF around the anterior condylar confluence proven to appear after skull fracture. This case demonstrates that head injury associated with skull base fracture could be one etiology of dural AVF around the anterior condylar confluence.Copyright © 2020 Elsevier Inc. All rights reserved.

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