Presenting a case of a 36-year-old male with history of a mixed testicular germ cell tumor, pT2. Imaging revealed a retroperitoneal mass at diagnosis (cN2), and the patient was treated with chemotherapy. Serum tumor markers normalized, and the patient was proposed for RPLND. The histologic features of this case will be discussed, as well as correlation with microRNA-371~373 studies, integrating with the biology of the disease.