Patient: A 2CM occupancy of the middle portion of the right kidney, not convex and buried in the parenchyma, was detected at the end of April. The patient also had splenomegaly (18.6X6.5CM), mild anemia, high white blood cell count (17), and an explicitly increased lymphocyte ratio (74%). Long history of alcohol consumption. None 1. What are the main risks of partial nephrectomy for kidney unit preservation? What are the principles of its surgical treatment? 2. Is the patient’s condition eligible for partial resection of the kidney-preserving unit? What are the effects on the body and recurrence rate compared to radical total resection? What is the long-term prognosis? 3. How difficult is it to perform partial nephrectomy in the patient’s case? How many surgical cases are there in your hospital in this area? Sun Fa, Department of Urology, Affiliated Hospital of Guizhou Medical University Sun Fa, Department of Urology, Affiliated Hospital of Guiyang Medical College: First of all, you should clarify what is the approximate nature of your occupancy? If it is a benign possibility, such as renal malformation tumor, you can not operate and observe it; if you consider renal cancer, only then consider preserving renal unit surgery. Preserved renal unit surgery is a routine surgery, mainly for patients with potential lesions in both kidneys. The recent view is for small, located around the kidney (near the periphery), but it is usually considered only for malignant ones, and only for benign ones with a diameter greater than 4 cm. The main risks of kidney unit preservation surgery are bleeding, tumor recurrence, and urinary leakage, etc. The others are possible complications of conventional kidney surgery. There is no need to worry too much. It is believed in the data that preserving kidney unit surgery and radical surgery have about the same survival rate for patients, but if the surgery is not completely removed, the result is different. If malignant, many scholars still advocate radical surgery, but if there are underlying problems such as stones, tumors, and dysplasia in the opposite kidney, then it is better to have kidney unit preserving surgery. The difficulty of surgery is there, but for general tertiary hospitals, it is not a problem, I should say that they have a lot of experience, as I originally said, dozens of patients every year, the method of surgery is laparoscopic surgery for units with conditions, the conditions are a little worse is the traditional open surgery. The former recovery is faster, the removal of tumors, there is not much difference, but to the degree of mastery of the main surgeon of the two surgical methods.