Introduction
Infective endocarditis (IE) is not a rare disease (1). It is more frequent in the presence of valvular disease (1). The IE lesions consist on vegetations and valvular destruction that are located essentially on the valves. The rupture of the mitral papillary muscle due to IE is a very rare complication (2, 3). We report here the case of severe mitral regurgitation occurring on normal mitral valve with anterolateral papillary muscle rupture due to IE.