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?
- A)Neutrophilic infiltration with liquefactive necrosis
- B)Amyloid deposition with apple green birefringence
- C)Fibrofatty replacement of the right ventricular free wall
- D)Noncaseating granulomas with giant cells
- E)Lymphocytic interstitial infiltrates with myocyte necrosisGABARITO
Explicação
Lymphocytic interstitial infiltrates with myocyte necrosis is correct. Viral myocarditis often follows a recent flu like illness and presents with chest symptoms, arrhythmia, and new systolic heart failure. Coxsackievirus B and other viruses classically produc... Ver explicação completa e trilha adaptativa →