This case demonstrates a dual territory infarction, within less than a week.   A posterior cerebral artery (PCA) territory infarct in the supratentorial brain, followed by a posterior inferior cerebellar artery (PICA) territory infarct in the infratentorial brain as well as a left thalamic infarct.

These infarcts (ischemic stroke) were embolic in nature.

Watch a fantastic series of educational videos collated by our founder Dr Frank Gaillard on the youtube radiology channel: stroke series