Posttraumatic dural arteriovenous fistula
Persistent headache resistant to painkillers. Severe head trauma 10 years ago.
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There are pronounced posttraumatic changes in the left cerebral hemisphere and to a lesser extent in the right frontal lobe.
Previous left frontotemporoparietal craniotomy.
Vascular tangle with hemosiderin deposits within the left parietal region connecting terminal branches of the left MCA and convexity veins.
There is no diffusion restriction.
There is a pathological connection between terminal branches of the left MCA and parietal convexity veins due to severe head trauma and brain decompression 10 years ago.
MRI findings are consistent with DAVF.