BRAIN - Occlusion of left internal carotid artery and left cerebral infarction

The undersurface of the brain shows the left internal carotid artery occluded by thrombus close to the origin of the left middle cerebral artery. The left cerebral hemisphere is swollen in comparison to the right.
This man was admitted at the age of 55 with myocardial infarction. Some three weeks later he developed a left-sided cerebral infarct and died. At autopsy the myocardial infarction was confirmed but no source of thrombus was found.