Idiopathic middle meningeal artery and middle meningeal vein fistula presenting as temporal intraparenchymal hemorrhage.

Idiopathic middle meningeal artery and middle meningeal vein fistula presenting as temporal intraparenchymal hemorrhage. Interv Neuroradiol. 2020 Sep 20;:1591019920960248 Authors: Sato D, Saito H, Suzuki T, Ota T Abstract Middle meningeal artery (MMA) and middle meningeal vein (MMV) fistula is a rare lesion. Hemorrhagic propensity for this pathology has not been widely recognized. We encountered a case of idiopathic MMA-MMV fistula presenting as intracerebral hemorrhage. MMA and MMV showed a single fistula and the enlarged MMV coiled around the MMA, resembling a varix. We treated the case using endovascular techniques. This case highlights the anatomy along the course of the MMV and is unique, since no backward leptomeningeal drainage was observed. A bone defect in the meningeal groove on computed tomography and a "green caviar appearance" on angiography may be characteristic of this rare pathology. PMID: 32954912 [PubMed - as supplied by publisher]
Source: Interventional Neuroradiology - Category: Radiology Tags: Interv Neuroradiol Source Type: research