Case report: multimodality imaging to diagnose cardiac diffuse large B-cell lymphoma.

Background: Primary cardiac lymphoma (PCL) is rare and can present with a wide variety of clinical symptoms, frequently leading to a delay in diagnosis.

Case Summary: We report a case of a PCL in an 81-year-old man. Cardiac magnetic resonance imaging showed multiple masses in the right atrium and a mass in the right ventricular outflow tract extending to the pulmonary artery.