Arteriovenous Malformation (AVM): Axial CT scan (level of the basal ganglia). The scan initially appears normal. However, if one looks closely, a collection of dark vascular spaces are seen in the ...

Subarachnoid Hemorrhage - Middle Cerebral Artery Aneurysm. Axial CT scans without contrast. Note the blood in the left Sylvian fissure. In some instances of subarachnoid hemorrhage, the area with the ...