Coronary Artery Disease USMLE Step 1 Practice Question
A 23 year old woman is brought to the hospital because of progressive shortness of breath and palpitations for 5 days. She had a flu like illness 2 weeks ago. Temperature is 38 C (100.4 F). Physical examination shows tachycardia, bibasilar crackles, and mild lower extremity edema. Troponin is mildly elevated. Echocardiography shows global systolic dysfunction with a reduced ejection fraction. Endomyocardial biopsy would most likely show which of the following?
Answer choices
- ANeutrophilic infiltration with liquefactive necrosis
- BAmyloid deposition with apple green birefringence
- CFibrofatty replacement of the right ventricular free wall
- DNoncaseating granulomas with giant cells
- ELymphocytic interstitial infiltrates with myocyte necrosisCorrect answer
- FHyaline deposition with Congo red positive staining
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