Kaplan-Meier estimates for RFS of study population comparing patients with and without teratomatous elements in orchiectomy specimens (n = 130). IGCCCG, International Germ Cell Cancer Collaborative Group; IQR, Interquartile range; PC-RPLND, post-chemotherapy retroperitoneal lymphadenectomy; RFS, relapse-free survival; TGCT, testicular germ cell tumors.