Among the many malformations of the heart and of the great vessels, those arising because of failure of the aorticopulmonary septum to develop constitute a group both interesting and small. Shapiro1 accepted only two cases as genuine examples of this defect, while Humphreys2 in a comprehensive review cited two more, adding a fifth of her own. Both of these authors included the case reported by Preisz,3 an inclusion the wisdom of which I question. The most recent report of an authentic truncus communis was by Beaver.4 It is impossible from the meager data given by Motta5 to reach any conclusion as to the real condition present in his 5 day old subject.
Since a careful study of malformed hearts constitutes a major portion of the experimental work on cardiac embryology, I feel justified in reporting a rather unusual example of this rare defect.
ROOS A. PERSISTENT TRUNCUS ARTERIOSUS COMMUNIS: REPORT OF A CASE WITH FOUR SEMILUNAR CUSPS AND AORTIC ARCH ON THE RIGHT SIDE. Am J Dis Child. 1935;50(4):966–978. doi:10.1001/archpedi.1935.01970100144013
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