The patient is a 17-year-old boy who was referred to our center with complaints of easy fatigability and exertional dyspnea. In echocardiography, the left ventricle was identified to be composed of a small functional cavity, and 2 sequestrated apical cavities that communicated with the functional cavity only through few stenotic orifices. The mitral valve apparatus was also abnormal: there was no definite papillary muscle, and chordae tendineae arose from the aberrant fibromuscular ridge that partitioned the left ventricular cavity. Imaging findings and management of this patient with a triple-cavity left ventricle are discussed.
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