<prompt> Which of the following germ cell tumor is malignant?Leydig cell tumorMature teratomaSeminomaDermoid cyst  <response>: Ans. is c i.e., Seminoma Germ cell tumorsaMalignant - Germinoma seminoma, dysgerminoma, embryonal carcinoma, endodermal sinus tumor yolk sac tumor, choriocarcinoma, immature teratoma.bBenign - Mature teratoma, dermoid cyst.o Leydig cell tumor is not a germ cell tumor. 