Abstract
Primary cardiac tumors are rare, and of these, primary cardiac lymphomas account for less than 1%. Most are B-cell non-Hodgkin lym- phomas, and the right atrium and right ventricle are the most frequently involved sites. The clinical presentation varies, but commonly involves pericardial effusions, AV block, valvular dysfunction, or heart failure. We present a 72-year-old man who was referred for an F-18 FDG PET-CT scan to evaluate a cardiac mass. An intensely hypermetabolic mass was observed replacing most of the right ventricle, which was confirmed with a contrast- enhanced CT as well as magnetic resonance imaging. Endomyocardial biopsy revealed a low-grade T-cell lymphoma. This is a rare report of a cardiac T-cell lymphoma imaged with F-18 FDG PET-CT.
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