The CT manifestation of renal staggered tumor is slightly hyperdense, and the diagnosis of renal staggered tumor can be confirmed when the fat CT value appears to be negative below -20 and the fat CT shows the phenomenon of hyperdense shadow. Renal malformation tumor is a benign tumor caused by the abnormal proliferation of smooth muscle, blood vessels and adipose tissue. The diagnosis of renal malformation tumor is confirmed when there is a negative fat CT value of -20 or less and the phenomenon of hyperdense shadowing on fat CT. Renal aganglionoma may be a separate disease or it may be a disease of tuberous sclerosis. Most patients with renal malformations do not experience any significant symptoms. Only when the renal staggered tumor is large in size, because it presses on the stomach, duodenum and other organs, the patient may feel discomfort in the digestive tract. Therefore, patients with renal malformation tumor should go to the hospital in time for effective treatment, follow up with regular review and keep optimistic mindset.