Clinical Research Directory

Inclusion Criteria: * CT or MRI angiography indicates a renal hilum tumor, and the patient has undergone partial nephrectomy; * The Eastern Cooperative Oncology Group (ECOG) performance status score is between 0 and 1, and the age is between 18 and 75 years old; * The clinicopathological data are complete; * There is no infection, autoimmune disease, hematological disease, or other malignancies. Exclusion Criteria: * The patient has surgical contraindications; * There are congenital malformations of the urinary system, obstructive nephropathy, or other diseases that seriously affect the function of the urinary system before surgery; * The patient has received relevant treatments that may affect the results of this study, such as radiotherapy in the kidney area, a history of kidney surgery, etc.; * There are tumors in both kidneys.