Embryonal carcinoma is known for its aggressive behavior, with a tendency for early vascular/lymphatic invasion, as seen in this case. The presence of vascular/lymphatic invasion, along with elevated tumor markers (AFP and HCG), and embryonal carcinoma predominance increased this patient's risk of metastasis and recurrence, even though post-orchiectomy imaging showed no evidence of metastatic disease [6]. This evidence concerns the gene AFP and neoplasm.