MCT4 was associated with higher T stages (p = 0.004), higher M stage (p = 0.037), stages higher than I (p = 0.045), presence of vascular invasion (p = 0.002), nonseminomatous histology (p < 0.001), and higher International Germ Cell Cancer Collaborative Group (IGCCG) risk stratifications (p = 0.030). This evidence concerns the gene SLC16A3 and malignant germ cell tumor.