Masquerade of an Emergency: Cardiac Tamponade as a Deceptive Presentation of Primary Cardiac Diffuse Large B-Cell Lymphoma – A Case Report

Primary cardiac diffuse large B-cell lymphoma (CDLBCL) is an exceptionally rare entity, estimated to represent less than 1% of all primary cardiac tumours. In this case report, we emphasize the diagnostic importance of multimodality imaging and the need for additional procedures, such as tissue biopsy, in a case with a primary cardiac lymphoma presenting with cardiac tamponade.