All are causes of myocarditis except: (A) Trichiasis, (B) Mycobacterium tuberculosis, (C) Corynebacterium diptheriae, (D) SLE
Answer is B. Refer robbins 9/e 571 Mycobacterium tuberculosis causes involvement of pericardium (caseous pericarditis). It is common cause of chronic constrictive pericarditis Primary pericarditis is unusual and is often viral in origin