“…Of additional interest, pericarditis in rheumatic carditis is characterized by fibrous sterile exudate, which coincides with the fibrous strands seen on echocardiogram and pericardial fluid that was cultured and remained sterile. 6 Overall, only 5% to 10% of all patients with rheumatic fever develop clinically detectable pericarditis, one of the known, but less common findings in rheumatic carditis. 6,7 When present, pericarditis is most often observed with pancarditis.…”