PICA infarct

Case contributed by Frank Gaillard


Acute vertigo and unsteadiness.

Patient Data

Age: 80 years
Gender: Male

CT brain


Subtle low density is seen involving the medial and inferior aspect of the left cerebellar hemisphere, suggestive of an early PICA territory infarct.



Acute restricted diffusion is demonstrated in the left PICA territory in keeping with an infarct. There is only minor swelling, no evidence of effacement of the fourth ventricle and no hydrocephalus. No other regions of restricted diffusion.    

Case Discussion

Typical appearances of a PICA territory infarct hi-lighting how subtle early infarction can be in the posterior fossa. 

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