Anterolateral papillary muscle rupture caused by myocardial infarction: A case report

The rupture of the anterolateral papillary muscle is less common than the posteromedial papillary muscle, as the anterolateral muscle has dual blood supply, whereas the posteromedial papillary muscle has a single blood supply. We present a a 49 years old male patient who has presented with chest pain and dyspnoea. A transesophageal echocardiogram was performed which showed that the mitral valve was normal in thickness with a flail anterior leaflet not coapting with the posterior leaflet due to the coronary artery disease. The patient underwent a mitral valve replacement and left anterior coronary artery and obtuse marginal bypass grafting.