persistent truncus arteriosus


persistent truncus arteriosus

persistent truncus arteriosus [trŭng′kəs är-tîr′ē-ō′səs] n.

  1. A congenital cardiovascular deformity resulting from the failure of the septum between the aorta and pulmonary trunk to develop and characterized by a common arterial trunk opening out of both ventricles with the pulmonary arteries branching from the ascending common trunk.

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