pseudotruncus arteriosus


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pseudotruncus arteriosus

 [soo″do-trunk´us ahr-te″re-o´sus]
the most severe form of tetralogy of fallot, consisting of atresia of the pulmonic valve and absence of the main pulmonic artery; the lungs are supplied through a patent ductus arteriosus or from bronchial arteries arising from the aorta.

pseu·do·trun·cus ar·te·ri·o·sus

(sū'dō-trŭng'kŭs ar-tēr-ē-ō'sŭs),
Congenital cardiovascular malformation with atresia of the pulmonic valve and absence of the main pulmonary artery; the lungs are supplied with blood either through a patent ductus arteriosus or via bronchial arteries arising from the aorta; a characteristic of the most severe form of tetralogy of Fallot.