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. 2020 Mar;12(3):319–328. doi: 10.21037/jtd.2020.01.28

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2020 Journal of Thoracic Disease. All rights reserved.

Open Access Statement: This is an Open Access article distributed in accordance with the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International License (CC BY-NC-ND 4.0), which permits the non-commercial replication and distribution of the article with the strict proviso that no changes or edits are made and the original work is properly cited (including links to both the formal publication through the relevant DOI and the license). See: https://creativecommons.org/licenses/by-nc-nd/4.0.

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Characteristic findings of infant-type ALCAPA. Male, 1 year old. (A) Less coronary collaterals within the ventricular septum (arrow); (B) echogenic enhancement in LV papillary muscles (arrows), especially in the anterolateral papillary muscle; (C) echocardiography showing left ventricle dilation, and anterior leaflet prolapse of the mitral valve with moderate to severe regurgitation (arrow); (D) coronary angiography showing a slightly dilated right coronary artery (arrow) arising from the aortic sinus, and right coronary supplying collaterals to the LCA (arrow), which drains to the pulmonary artery. ALCAPA, anomalous origin of the left coronary artery from the pulmonary artery; LV, left ventricle; MR, mitral valve regurgitation; RCA, right coronary artery; AO, aorta.