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.