The Man With a Heart of Stone

A 64-year-old man who underwent remote coronary artery bypass surgery presented with acute vision loss. Findings on physical examination and vital signs were unremarkable except for blindness in the left eye. Laboratory values were significant for elevated troponin T and normal calcium, parathyroid hormone, and vitamin D levels. Electrocardiography showed left ventricular hypertrophy with strain. Chest x-ray (A) revealed organized hyperdense, linear material throughout the heart (arrow). Echocardiography (B and C, Online Video 1) showed a mobile echodensity on the posterior papillary muscle and echogenic myocardium. Computed tomography and cardiac magnetic resonance imaging (D and E, Online Video 2) showed that the hyperdense material was calcium and did not compromise ventricular function…

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