WHO 2022 Renal Cell Tumor Classification: Imaging Features and Clinical Implications

Radiologists should be familiar with the World Health Organization 2022 renal cell tumor classification and recognize that although most of the rare renal tumors in these categories show gradual enhancement similar to that of papillary renal cell carcinomas, they vary based on patient age, growth pattern, CT attenuation, enhancement degree, homogeneity, T2 signal intensity, and existence of metastases.