Cardiac metastasis of squamous cell carcinoma of the buccal mucosa

We reported an extremely rare case of cardiac metastasis of squamous cell carcinoma of the buccal mucosa. There were no abnormalities in the electrocardiogram and no prior symptoms. We performed an autopsy and confirmed metastatic lesions in the heart, lung, and liver that originated from the buccal mucosa carcinoma. This case should add to knowledge about rarely encountered cardiac metastasis.