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| • Loss of normal offsetting of atrioventricular valves (absence of the atrioventricular muscular septum) |
| • Abnormal configuration of the atrioventricular valves |
| • Trifoliate appearance of the left atrioventricular valve (with “cleft”) |
| • Left ventricular inlet outlet disproportion |
| • Abnormal position of the left ventricular papillary muscles |
