Origin of the Right Pulmonary Artery from the Ascending Aorta Unusual Cineangiocardiographic and Pathologic Findings

T HE following is a case report with au-topsy findings of an infant who had anomalous origin of the right pulmonary artery from the aseending aorta. This ease demonstrated two unusual findings: a venous cineangiocardiogram showed sequential filling of the right atrium, left atrium, left ventricle, aorta, and the right pulmonary artery without initial opacification of the right ventricle and left pulmonary artery; at necropsy there was a fibrous cord connecting the main pulmonary artery with the anomalous right pulmonary artery. Case Report A.B., F54 423. This 20-day-old male infant was admitted to the hospital because of dyspnea and intermittent eyanosis of five days ' duration. The patient was the fifth child of a 34-year-old nmother. The pregnancy was marked by slight uter-ine bleeding during the seventh month. The deliv-ery was normal, birth weight was 2.9 Kg., and physical examination was normal at the time of discharge from the hospital on the third day of life. The infant did well until the fifteenth day, when the miiother noted he had a weak cry asso-ciated with a rapid respiratory rate. On admission the weight was 3.5 Kg., length 54 cm., temperature 37.9 C., pulse 180, respira-tion 68, blood pressure 60 mm. Hg by the flush method in both arms. The child was in acute re-spiratory distress and markedly eyanotic. No dif-ferential eyanosis was seen. Fine rales were pres-ent over the left lung posteriorly. There wa