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The Artery of Wollschlaeger and Wollschlaeger (AWW) is a non-eloquent, tentorial branch of the superior cerebellar artery (SCA). Coursing posteriorly from an intradural origin, the AWW passes through the ambient cistern and supplies the medial tentorium. Due to its small diameter, the AWW is often only identified in the context of secondary dilation from pathologies such as dural arteriovenous fistulas (DAVF). Herein, we report the first case, to our knowledge, of an aneurysm of the AWW associated with a posterior fossa DAVF Swift identification and diagnosis followed by cautious treatment of both the aneurysm and fistula were critical to avert rupture and optimize outcomes, avoiding potential hemorrhagic complications.