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Rupture of Papillary Muscle

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Rupture of the papillary muscle is the least common form of myocardial rupture following an acute myocardial infarction (MI). It results in severe acute mitral regurtitation. The image shows rupture of posterior papillary muscle in the left ventricle following postero-septal myocardial infarction in a 64 y/o male. The patient had atherosclerotic occlusion of the right coronary artery.

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