Primary atrial lymphoma in a patient with dyspnea

Primary cardiac lymphoma is extremely rare. In this care report, we present the case of a 46-year-old man with primary cardiac lymphoma involving left atrium and interatrial septum, presenting as dyspnea palpitation and irregular heart beat. The diagnosis was obtained by transthoracic echocardiography and surgical biopsy with subxiphoid approach which revealed diffuse large B-cell non-Hodgkin's lymphoma, CD 20+. After 8 courses of chemotherapy, the patient achieved complete remission. After 4 months, however, he developed exertional dyspnea. Right atrial recurrent lymphoma extension was diagnosed. He is currently under external radiotherapy treatment. Patients with primary cardiac lymphoma have a very poor prognosis