A 68-year-old man was transferred emergently to our department because of multichamber intracardiac thrombosis. Enhanced computed tomography revealed multichamber thrombosis in the right atrial appendage, right ventricular outlet tract. and left atrial appendage, with localized aneurysm of a much enlarged right ventricle. He underwent thrombectomy and valve repair. Here we report a rare case of arrhythmogenic right ventricular cardiomyopathy with multichamber intracardiac thrombosis.
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