[Differential diagnosis of renal tumors].

Through the large numbers of ultrasound studies and computed tomography (CT) and magnetic resonance imaging (MRI) scans being done, many symptomless renal tumors are detected. The radiologist has a duty to differentiate renal lesions and diagnose malignant tumours in adults. Modern imaging modalities such as CT and MRI have the capability to further differentiate renal tumours by specific attributes. In this article, the most common renal tumours are presented, and typical findings are discussed.