Abstract

A 57-year-old female with no abnormal disease history presented to our clinic for persistence shortness of breath over 1 year. On admission, the physical examination revealed a heart rate 89 beats/min with sinus rhythm, hepatojugular reflux syndrome, hepatomegaly, and peripheral oedema. No cardiac murmur can be noticed. Chest X-ray revealed a pronounced bulge of the right heart margin (Panel A, arrow), with normal pulmonary vascular markings. Transoesophageal echocardiography detected a giant echolucent mass with intra-cavity thrombus (Panel B, arrowhead, 6.02 cm × 3.70 cm; Supplementary material online, Video S1). Computerized tomography angiography (CTA) confirmed a giant aneurysm with intra-cavity thrombus arising from the right atrial appendage, compressing the right ventricle (Panels C and D, 8.30 cm × 6.53 cm in short-axis, arrowhead, and asterisk). The patient received surgical intervention under cardiopulmonary bypass. After median sternotomy, the intra-cavity thrombus, which was then removed, could...

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