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| Case 1 | Case 2 | Case 3 |
| Age (years) | 73 | 55 | 80 |
| Sex | Male | Female | Female |
| Presentation | Dyspnea Peripheral edema | Dyspnea Substernal chest pain | Dyspnea Weakness |
| ECG | Right bundle branch block Prolonged QTc | First-degree AV block Prolonged QTc | Atrial fibrillation Prolonged QTc |
| Echocardiogram | 12.1 cm mass in the RV | 3.1 cm mass in the RA | 4.0 cm mass in the RA |
| Other Imaging | Cardiac MRI CT C/A/P | Cardiac MRI CT C/A/P PET/CT | CT Chest |
| HIV Status | Negative | Negative | Not assessed |
| EBV Serology | Not assessed | Positive IgG | Not assessed |
| Tissue Sampling | Biopsy | Biopsy | Autopsy |
| Diagnosis | DLBCL | DLBCL | DLBCL |
| Treatment | R-COEP × 2 | R-CVP × 1 R-CHOP × 2 | None |
| Survival | 2 months | Lost to follow-up | 1 week |