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. 2019 Nov 22;98(47):e18046. doi: 10.1097/MD.0000000000018046

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Copyright © 2019 the Author(s). Published by Wolters Kluwer Health, Inc.

This is an open access article distributed under the terms of the Creative Commons Attribution-Non Commercial-No Derivatives License 4.0 (CCBY-NC-ND), where it is permissible to download and share the work provided it is properly cited. The work cannot be changed in any way or used commercially without permission from the journal. http://creativecommons.org/licenses/by-nc-nd/4.0

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ALCAPA in a 8-year-old male. (A) Transthoracic echocardiography shows a dilated right coronary artery (arrows). (B) Color Doppler flow image reveals the collateral vessel in the interventricular septum (arrow). (C) Parasternal short-axis view shows the left coronary artery originating from pulmonary artery (arrow). (D) Color Doppler reveals a retrograde flow from the ostium of the LCA to the PA (arrow). (E) Pulse Doppler showed the retrograde red shunt a lowvelocity, prominently diastolic flow spectrum. LA = left atrium, LV = left ventricle, RA = right atrium, AO = aortic, PA = pulmonary artery, RCA = right coronary artery.