Acute midbrain infarction

Discussion:

The midbrain (mesencephalon) is the most rostral part of the brainstem and sits above the pons and is adjoined rostrally to the thalamus.  The largest component is the tegmentum, which contains the brainstem nuclei.

It is one of the less common sites for an isolated infarct.

This is a decent example of an acute right midbrain infarction.

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