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NBME 24 Answers

nbme24/Block 1/Question#45 (reveal difficulty score)
A 71-year-old man is brought to the emergency ...
Area labeled โ€˜Dโ€™ (Posterior inferior cerebellar artery) ๐Ÿ” / ๐Ÿ“บ / ๐ŸŒณ / ๐Ÿ“–
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submitted by โˆ—drdoom(1206)
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The stem is describing sequelae of posterior inferior cerebellar artery occlusion, resulting in Wallenberg syndrome. Hereโ€™s a nice schematic of the affected nuclei and brain stem regions:

https://i.ytimg.com/vi/A8S3B9p1t_g/maxresdefault.jpg

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

https://www.youtube.com/watch?v=A8S3B9p1t_g

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nbme4unme  Great video! Very, very solid review of brainstem anatomy. +
suckitnbme  This image was surprisingly interpretable for NBME standards +16
aneurysmclip  and the fact that all you needed to know was the side of the lesion to answer tbh lmao, but other than that localizing to medulla wasn't hard. +6
medguru2295  Actually, they were quite nice. You didn't even have to know what side. There was no option for left medulla. +3



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