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NBME 23 Answers

nbme23/Block 3/Question#11

A 50-year-old woman with idiopathic cardiomyopathy ...

Penetration of larvae from soil into the skin

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Strongyloides penetrates the skin (usually the feet), travels into the bloodstream, enters the lungs/trachea where it is usually coughed up and then swallowed into the GI tract. They can lay eggs in the intestines, and when the larvae hatch, they can penetrate the intestinal wall and enter the bloodstream again.