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NBME 18 Answers

nbme18/Block 4/Question#13 (reveal difficulty score)
A 19-year-old man is evaluated for signs of ...
Heterotopic gastric mucosa ๐Ÿ” / ๐Ÿ“บ / ๐ŸŒณ / ๐Ÿ“–
tags: GI gastrointestinal

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submitted by โˆ—baja_blast(219)
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This man has a Meckel Diverticulum, which can cause hematochezia or melena. The 99mTc-pertechnetate scan used for diagnosis of Meckel Diverticula hinges on uptake of the radioactive compound by heterotopic gastric mucosa. FA 2019 p. 378.

The age of this patient threw me off. I would have thought that a Meckel Diverticulum would have presented earlier in life than 19 years old.

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submitted by โˆ—amy(4)
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2 feet is about 60cm. so he IS within the range of the 2s (2 feet proximal from ileocecal valve). Not medically related knowlege at all, I got this wrong

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