Interesting Images18F-FDG PET/CT Finding of Primary Cardiac LymphomaKaida, Hayato MD, PhD*; Kumode, Takahiro MD†; Kimura, Masatomo MD, PhD‡; Ishii, Kazunari MD, PhD*Author Information From the Departments of *Radiology †Hematology and Rheumatology, Kindai University Faculty of Medicine ‡Department of Diagnostic Pathology, Kindai University Hospital, Osakasayama City, Osaka, Japan. Received for publication October 25, 2019; revision accepted December 7, 2019. Conflicts of interest and sources of funding: none declared. Correspondence to: Hayato Kaida, MD, PhD, Department of Radiology, Kindai University Faculty of Medicine Ohnohigashi 377-2, Osakasayama City, Osaka 589-8511, Japan. E-mail: email@example.com. Online date: February 12, 2020 Clinical Nuclear Medicine: April 2020 - Volume 45 - Issue 4 - p 319-321 doi: 10.1097/RLU.0000000000002957 Buy Metrics Abstract An 80-year-old woman experienced dyspnea. Cardiac enlargement was detected by chest radiography at a local hospital. She was admitted to our hospital, and echocardiography and CT revealed pericardial effusion and multiple tumor lesions in right atrium. 18F-FDG PET/CT demonstrated multiple nodular accumulations in these tumors (SUVmax, 14.5). Cytologic analysis of the pericardial fluid revealed a diffuse large B-cell lymphoma. Primary cardiac lymphoma (PCL) is rare, and there are few reports about the 18F-FDG PET/CT imaging features of PCLs. In high 18F-FDG uptake in multiple tumors in the right atrium and large pericardial effusion, a PCL should be considered. Copyright © 2020 Wolters Kluwer Health, Inc. All rights reserved.