Lateral medullary syndrome
Right facial numbness and slurred speech, and left upper limb loss of temperature sensation.
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Focal area of restricted diffusion in the right lateral medulla oblongata.
The abnormalities are subtly discernable on T1 and T2, but the DWI imaging is eloquent in visualizing this small, but important pathology.
Lateral medullary syndrome ( aka Wallenberg's syndrome ) is a uncommon, but classical neurological condition with distinct clinical symptoms due to a infarct in the lateral medulla oblongata.