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Parasternal short axis views. (A) At the level of mitral valve showing anterior (AMVL) and posterior (PMVL) leaflets. Anterolateral (ALC) and posteromedial (PMC) commissures (arrows) are widely open. (B) At the level of papillary muscle showing anterolateral (ALPM) and posteromedial (PMPM) papillary muscles.
