USMLE step 2 Mcq 57:A 14-year-old boy scout complains of exercise-induced sharp chest pain

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Question:
A 14-year-old boy scout complains of exercise-induced sharp chest pain at the left lower sternal border that diminishes with resting and does not awaken him. He has never had anything like this before. Palpation along the sternal edge replicates the symptoms. The most likely diagnosis is

a) mitral insufficiency
b) aortic stenosis
c) pericarditis
d) tricuspid incompetence
e) costochondritic pain


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