[Non-Hodgkin's lymphoma with heart, mediastinum and lung hilar involvement].

We performed an exploratory thoraco-, pericardio- and cardiotomy in a 70-year-old male patient suffering from a biatrial tumor after a thorough diagnostic procedure had failed to reveal the correct diagnosis. Histologically, the tumor proved to be a centrocytic-centroblastic non-Hodgkin-lymphoma. This case demonstrates the diagnostic difficulties in cardiac involvement of lymphomas and presents the therapeutic options.