Primary cardiac lymphoma (PCL) is a very rare neoplasm, which involves
only the heart and pericardium without evidence of extracardiac
involvement. We herein report a unique case of a 64-year-old man
presenting with increasing exertional dyspnea, worsening orthopnea,
oxygen desaturation and upper body swelling. Subsequent investigations
revealed a large obstructive right atrial (RA) tumor. Due to the
patient’s deteriorating clinical condition, urgent surgical removal of
the tumor was planned and successfully performed. Histopathological
findings were consistent with the diagnosis of primary cardiac lymphoma.
The patient subsequently completed his chemotherapy cycles and is
currently in remission.