The Embryonal Carcinoma is one of the several types of testicular germ cell tumors, which also include the seminoma , teratoma, Endodermal sinus tumor and choriocarcinoma. Forming from a malignant germ cell tumor, the embryonal carcinoma is a reproductive cell gone out of control. Like any cancer, it grows with its cells dividing rapidly and indefinitely. The embryonal carcinoma can spread up the epididymis to the vas deferens and spread...