The Bottom Line: Due to poor risk/benefit ratio due to low sensitivity endomyocardial biopsy is rarely performed.
Sarda. Myocarditis in patients with clinical presentation of myocardial infarction and normal coronary angiograms. Source: Journal of the American College of Cardiology 2001 vol:37 iss:3 pg:786 -792
Summary: Attention is paid to the diagnosis and treatment of myocarditis, because arguments suggest a relation between infectious cardiac disease and dilated cardiomyopathy. Myocarditis can mimic myocardial infarction, and so it is suspected with clinical and electrocardiographic evidence of acute coronary syndrome, and having normal coronary angiograms.