the absence of afp elevation in 3 other cases of pure germinoma ( atypical teratoma ; pinealoma ) agrees with reports which describe that , in the germ cell tumor of the gonads , a rise in afp is not observed in pure seminoma but is found in embryonal carcinoma and endodermal sinus tumor ( yolk sac tumor ) .
C0206660
germinoma
C0036631
pure seminoma