Asymptomatic isolated cardiac metastasis in treated tongue carcinoma: A rare case report

Cardiac metastasis from tongue squamous cell carcinoma (SCC) is rare and typically occurs as part of disseminated disease. Seven months' after completing treatment and loco-regional disease control, the patient was incidentally diagnosed with a mass in the right atrium on routine imaging, which was subsequently surgically excised. Histopathology of the cardiac lesion supported a diagnosis of squamous cell carcinoma, consistent with metastasis from tongue carcinoma. PET-CT indicated no uptake elsewhere in the body. Seven months after cardiac surgery, patient is currently undergoing systemic therapy with a performance status over 70. This is a unique case of incidental, isolated cardiac metastasis in a previously treated tongue SCC.