PMC9894000_01
18F-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG-PET/CT) study. a After resecting the cardiac mass, which was diagnosed as a cardiac lymphoma, 18F-FDG-PET/CT detected residual disease on the right atrial wall (arrow). b Pathological features. The patient's cardiac tumor was diagnosed pathologically as DLBCL. The tumor has a typical phenotypic marker of mature B cells, CD20+, and CD10+. Arrows indicate the area of infiltration in the pericardial lymphoma tissue. c18F-FDG uptake is suppressed in normal myocardial tissue.
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PMC9894000_01_cro-2023-0016-0001-527638_f1.jpg
F1
Despite the excision of the majority of the cardiac lymphomatous mass during surgery, 18F-FDG-PET/CT revealed a thickness of the right atrial wall (shown in Fig. 1a) indicating residual lymphoma tissue (shown in Fig. 1b). As shown in the 18F-FDG-PET image, the normal myocardium had little 18F-FDG uptake (shown in Fig. 1c).