The images show a fusiform dilation of the supraclinoid segment of the left internal carotid artery. It measures 3.2 x 1.8 x 1.5cm. No thrombosis seen.
No hyperdensities within the sulci or basal cisterns to suggest rupture or leakage.

Left fusiform aneurysm of the left internal carotid artery. No thrombosis or subarachnoid hemorrhage seen