Postsurgical Development of Dural Arteriovenous Malformations after Transpetrosal and Transtentorial Operations

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Abstract
The authors present a case of mixed pial and dural arteriovenous malformations (AVMs) in the transverse and the sigmoid sinuses, which developed 2 years after the resection of a trigeminal neuroma via the transpetrosal and transtentorial approach. To the best of our knowledge, this is the first case of the delayed development of dural AVMs after transpetrosal and transtentorial surgery. The cause of acquired dural AVMs is discussed, and the potential risk of delayed development of dural AVMs after transpetrosal and transtentorial surgery is described.