Characteristics of Cardiac Tumor and the Risk Stratification of Subsequent Adverse Events (UNIQUE)

Inclusion Criteria: * Patients who are regularly visited and followed up in the corresponding cardiovascular center. * All patients must meet at least one of the following diagnostic criteria for cardiac neoplasms: 1. Cardiac myxoma group; 2. Cardiac fibroma group; 3. Cardiac lipoma group; 4. Cardiac hemangioma group; 5. Cardiac undifferentiated sarcoma; 6. Cardiac angiosarcoma group; 7. Cardiac rhabdomyosarcoma group; 8. Cardiac lymphoma group; 9. Cardiac metastasis group; 10. Other cardiac tumors group. Exclusion Criteria: * Age \<3 years or \>80 years old. * Pregnant and lactating women. * The patient declined to provide informed consent to participate in the study. * None of the above was met, but the patient was temporarily unable to sign the informed consent form due to coma and other reasons, and no legal representative signed it instead. Depending on the patient's condition, the patient may not be able to regain consciousness and sign the informed consent form.