In acute rheumatic fever, the most common cardiac manifestations are Mitral regurgitation Pericarditis Sometimes aortic regurgitation In chronic rheumatic heart disease, the most common cardiac manifestations are Mitral stenosis Aortic regurgitation (often with some degree of stenosis) Perhaps tricuspid regurgitation (often along with mitral stenosis) Skin Subcutaneous nodules appear indistinguishable from those of juvenile idiopathic arthritis (JIA), but biopsy shows features resembling Aschoff bodies.