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NBME 24 Answers

nbme24/Block 1/Question#45

A 71-year-old man is brought to the emergency ...

Area labeled ‘D’ (Posterior inferior cerebellar artery)

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submitted by drdoom(165),

The stem is describing sequelae of posterior inferior cerebellar artery occlusion, resulting in Wallenberg syndrome. Here’s a nice schematic of the affected nuclei and brain stem regions:

... and a 6-minute YouTube video that walks you through it:

nbme4unme  Great video! Very, very solid review of brainstem anatomy. +