Kidney cancer is still essentially a malignant tumor.
According to statistics, patients with stage HI kidney cancer (where the tumor remains confined to the kidney or extrarenal fascia and theoretically can be completely removed without residual tumor) still have local recurrence or distant metastases after surgery. The lung is the most frequent organ with distant metastasis, accounting for nearly half of all metastatic sites. Recurrence or metastasis most often occurs 1-2 years after surgery, and the vast majority of recurrences or metastases occur within 3 years after surgery.
Therefore, the occurrence of postoperative recurrence and metastasis should be closely monitored even after complete surgical resection of kidney cancer, which requires regular follow-up examinations over a period of time to detect recurrent or metastatic lesions early, because the earlier they are detected and treated in a timely manner, the more likely it is to slow down the progression of lesions and increase the survival time of patients.