MIP CTA confirms the presence of a left temporal lobe arteriovenous malformation (AVM) which appears to receive the vast majority of its supply from the left middle cerebral artery. Contribution from the posterior cerebral artery is although likely via the lateral posterior choroidal arteries. Contribution from anterior cerebral artery and meningeal arteries cannot be excluded.
Drainage appears to be predominantly superficial, over the temporal lobe and into the transverse / sigmoid sinus. The superior petrosal sinus appears plump and likely also provides some drainage.