What is a tumor in kidney?

A tumor in the kidney can be called a renal mass until its nature is determined. Renal mass lesions can be benign, but most are malignant. Benign renal mass lesions are most common in hamartomas. When a renal hamartoma grows to more than 4 cm, the risk of bleeding increases and surgery is generally required. In some special patients, immunosuppressants may be tried. Renal cell carcinoma is the main malignant space-occupying lesion of kidney. Small renal cell carcinoma can be partially resected, and large renal cell carcinoma must be radical nephrectomy. Postoperative follow-up can be carried out regularly. When metastasis is shown, targeted drugs can be used for treatment.