Cureus. 2018 Sep 4;10(9):e3248. doi: 10.7759/cureus.3248.
Massrey C, Altafulla JJ, Iwanaga J, Litvack Z, Ishak B, Oskouian RJ, Loukas M, Tubbs RS.
Abstract
The dural venous sinuses are venous channels in the cranium that drain blood and cerebrospinal fluid circulating from the brain into the vascular system via the internal jugular veins. The transverse sinus is a dural venous sinus present in the posterior aspect of the cranium. We report an unusual variant of this sinus with the presence of a fenestration at its proximal segment. We will review and discuss the background and the potential clinical relevance of this anatomical variation.
KEYWORDS:
anatomy; dural venous sinuses; fenestration; transverse sinus; variation
![Figure 1](https://images.squarespace-cdn.com/content/v1/554037b3e4b0da169013a32f/1585244155647-FCXIOMCJ9MB4AS4G264B/cureus-0010-00000003248-i01.jpg)