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Two- (A) and 3-dimensional (B) transesophageal echocardiography, contrast-enhanced computed tomography (CT) scans (C) and left atrial (LA) reconstruction anatomy of CT images (D–F) revealed a string-like structure (arrows) extending from the posterior to the anterior side of the right inferior pulmonary vein (RIPV), across the front of the RIPV attached to the interatrial septum. Ao, aorta; LA, left atrium; RA, right atrium; RSPV, right superior pulmonary vein.
