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persistent truncus arteriosus

persistent truncus arteriosus in Medicine

persistent truncus arteriosus persistent trun·cus ar·te·ri·o·sus (trŭng'kəs är-tēr'ē-ō'səs)
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.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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