Dural arteriovenous fistula

Case contributed by Dr Dalia Ibrahim

Presentation

History of remote head trauma. Now she complains of fainting attacks and right sided weakness.

Patient Data

Age: 35 years
Gender: Female
CT

A left-sided dural arteriovenous fistula is demonstrated fed by external carotid (middle meningeal) branches with prominent cortical vein enlargement.  No evidence of vascular nidus.

The enlarged veins drain subsequently into the superior sagittal sinus.

Annotated image

This image demonstrates direct communication between middle meningeal artery branches and the enlarged draining cortical veins without nidus in between. (Circle)

Case Discussion

Dural arteriovenous fistulas (dAVF) are a heterogeneous collection of conditions that share arteriovenous shunts from dural vessels. They present variably with hemorrhage or venous hypertension, and can be challenging to treat.

Typically, they are supplied by multiple feeders from arteries that supply the relevant part of the meninges and regional scalp vessels that often give transosseous branches:

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Case information

rID: 31368
Published: 27th Apr 2018
Last edited: 14th Aug 2019
Inclusion in quiz mode: Included

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