Primary cardiac lymphoma presenting as heart failure and atrioventricular block: case report.

ABSTRACT: Primary cardiac lymphoma (PCL) is an extremely rare and highly aggressive malignancy that typically presents with nonspecific cardiac symptoms. We report a case of primary cardiac diffuse large B-cell lymphoma (DLBCL) with initial manifestations of heart failure and third-degree atrioventricular block. The patient presented with progressive dyspnea, palpitations, and unintentional weight loss. Transthoracic echocardiography revealed a large right atrial mass. The patient first underwent surgical resection of the cardiac tumor, and pathological examination confirmed non-GCB subtype DLBCL. During fractionated R-CHOP chemotherapy, the patient experienced cardiac arrest, necessitating the urgent implantation of a temporary pacemaker. Subsequently, a permanent pacemaker was implanted using a ph

SUBMITTER: Liu J 

PROVIDER: S-EPMC12591941 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature