Renal tumors are becoming more common in our Moroccan environment. This trend can be explained by the generalization of the use of imaging, particularly abdominal ultrasound, among general practitioners, which has become almost systematic. Kidney cancer is distinguished by anatomopathological heterogeneity: histological type, nuclear grade, and tumor stage are the most important prognostic factors. Renal biopsy appears to be a safe and dependable solution with a low risk of tumor seeding and complications, but it cannot provide all of the necessary detailed histological information. As a result, the abdominal scanner has piqued the public's interest. The abdominal scanner is the standard examination for evaluating renal tumors; it diagnoses the tumor, specifies its characteristics, and evaluates its locoregional and venous extension.