Pathological risk factors for metastatic disease in patients with testicular non-seminomatous germ cell tumors are debated. The tumor-node-metastasis (TNM) classification eighth edition for testicular cancers includes divergent versions, by the International Union Against Cancer (UICC) and by the American Joint Committee for Cancer (AJCC). In this episode we discuss with Dr. Daniel Berney his recent study on the topic. Study by Scandura et al, Pathological predictors of metastatic disease in testicular non-seminomatous germ cell tumors: which tumor-node-metastasis staging system? Modern Pathology, 2020. https://www.nature.com/articles/s41379-020-00717-2