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Article
October 1989

Radiological Cases of the Month

Author Affiliations

Contributed from the Department of Pediatric Cardiology, University of Nebraska Medical Center, Omaha.

Am J Dis Child. 1989;143(10):1209-1210. doi:10.1001/archpedi.1989.02150220109029
Abstract

A 3-week-old male infant was seen for routine evaluation. His parents reported no problems other than decreased feeding for 4 to 5 days. The infant was mildly pale and tachypneic. His weight was 3700 g (60 g above birth weight). Respirations were 70/min. There was a grade 2/4 systolic ejection murmur at the upper left sternal border. Pulses were normal. He was referred for further diagnostic studies, including a chest roentgenogram (Fig 1), an echocardiogram (Fig 2), magnetic resonance imaging (Fig 3), and angiography (Fig 4).

Denouement and Discussion 

Anomalous Origin of the Right Pulmonary Artery From the Aorta: 'Hemitruncus'  Hemitruncus is an unusual cardiovascular malformation in which one pulmonary artery, usually the right,1 arises from the ascending aorta, while the opposite pulmonary artery connects normally to the main pulmonary trunk. An associated patent ductus arteriosus is common,2 and intracardiac defects are occasionally present.1,2 The diagnosis must be applied cautiously to avoid confusion with

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