Postero-superiorly to the left parietal intracerebral haematoma is an arteriovenous malformation with a 3.5 cm nidus, fed by enlarged branches of the left anterior, middle and posterior cerebral arteries. The intracerebral haemorrhage has likely arisen from a 7 mm aneurysm on the feeding left posterior cerebral artery. Venous drainage appears predominantly superficial.
No CTA spot sign.
Multiple aneurysms also arise from: left ICA terminus - 4mm; left MCA trifurcation - 7mm; Sylvian portion of an engorged left MCA - 3mm; and more distally off the same vessel as it runs over the cortex - 1.5mm.