Supplemental Table 3. Clinical patient characteristics.
| Characteristics | Data |
| No. of subjects | 31 |
| Male, n (%) | 19 (61.3) |
| Female, n (%) | 12 (38.7) |
| Mean age of diagnosis, n years (range) | 53.6 (23.0-77.0) |
| Mean primary to metastasis diagnosis, n years (range) | 2.2 (0.2-11.0) |
| Presenting symptoms, n (%) | |
| Chest pain | 9 (29.0) |
| Shortness of breath | 9 (29.0) |
| Syncope | 5 (16.1) |
| Weight loss | 4 (12.9) |
| Fever | 4 (12.9) |
| Oral mass | 4 (12.9) |
| Lymphadenopathy | 3 (9.7) |
| Oral pain | 3 (9.7) |
| Edema | 2 (6.5) |
| Hemoptysis | 2 (6.5) |
| Palpitations | 2 (6.5) |
| Physical exam findings, n (%) | |
| Hypotension | 4 (12.9) |
| Fever | 4 (12.9) |
| Cardiac murmur | 3 (9.7) |
| Tachycardia | 3 (9.7) |
| Diagnostic findings, n (%) | |
| Electrocardiography | 19 (61.3) |
| ST elevation | 12 (63.2) |
| Arrhythmia | 6 (31.6) |
| Bundle branch block | 4 (21.1) |
| T-wave inversion | 4 (21.1) |
| Echocardiography | 24 (77.4) |
| Pericardial effusion | 7 (29.2) |
| Right ventricular outflow tract obstruction | 6 (25.0) |
| Valvular dysfunction | 3 (12.5) |
| Wall motion abnormality | 2 (8.3) |