It is recommended that people over the age of fifty should be examined at least once a year. Recently, we met a patient who had no abnormality in the ultrasound examination one year ago, and then had a routine checkup one month ago, and the ultrasound examination again revealed a mass of about 1 cm in diameter in the right kidney. The postoperative pathology was clear cell carcinoma, and there was no infiltration of renal tissue around the lesion. If the kidney cancer is found late and obvious symptoms or metastasis appear, the patient’s survival time will be greatly shortened. Imagine if the patient does not have the habit of regular checkups, hematuria or lumbar pain may appear only after 2-3 years, and then surgery may not be able to cure the disease. Enhanced CT findings seen laparoscopically