Radical Radiotherapy Versus Radical Surgery for UTUC

Inclusion Criteria: * Uroepithelial carcinoma of the renal pelvis or ureter supported by clinical symptoms, imaging, histopathology, urocytology, or fluorescence in situ hybridisation (FISH), or those who satisfy FISH positivity despite the absence of pathology or the patient's refusal to be punctured and who are judged to have a renal pelvic or ureteral carcinoma by an imaging physician and a urologist on the basis of CTU or MRU or PETCT; No distant metastases were detected on full screening; Patients who are unable to undergo surgical treatment due to poor general condition, inability to be anaesthetised or to tolerate surgery, or refusal to undergo surgery; patients who are over 70 years old; or patients who are less than 70 years old combined with underlying diseases or the presence of regional lymph node metastasis, etc. who are otherwise unable to undergo radical surgery; Expected survival ≥ 6 months; Willingness and ability to comply with trial and follow-up procedural arrangements; voluntarily agree to participate in the study and sign an informed consent form. Exclusion Criteria: * Previous abdominopelvic radiotherapy; Other serious, uncontrolled concomitant disease that may affect adherence to the protocol or interfere with interpretation of results; Other malignancies within 5 years prior to the start of study dosing, with the exception of malignancies that can be expected to resolve with treatment (including, but not limited to, adequately treated thyroid cancer, cervical cancer in situ, basal or squamous cell skin cancer, or ductal carcinoma in situ of the breast treated by radical surgery); estimated that patients' adherence to participation in this clinical study was insufficient.