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Retired NBME 15 Answers

nbme15/Block 3/Question#15 (reveal difficulty score)
A 15-year-old is brought to the physician ...
Avascular necrosis of the proximal scaphoid bone ๐Ÿ” / ๐Ÿ“บ / ๐ŸŒณ / ๐Ÿ“–
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submitted by โˆ—cassdawg(1781)
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The stem describes tenderness in the anatomical snuffbox ("radial aspect of the wrist between the abductor pollicis longus and extensor pollicic brevis"). This is indivative of a fracture of the scaphoid bone. One of the more common complications is avascular necrosis of the proximal scaphoid bone. [FA2020 p449]

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randi  FA2019 p439 +2
cheesetouch  FA18 435 +1



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submitted by โˆ—prostar(22)
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Scaphoid fracture because it forms the FLOOR of ANATOMICAL SNUFF BOX. Just wanted to add that.

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submitted by โˆ—chaosawaits(92)
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Minor question: but isn't the anatomical snuff box the triangle between the extensor pollicis brevis and the EXTENSOR pollicis longus, not the ABDUCTOR pollicis longus?

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