when the occurrence of the gm2 antigen was tested in 107 cases of human germ cell tumors by the immunohistochemical technique using these antibodies , seminoma was characterized as having the highest frequency of n-acetyl gm2 ( 89.4 % , 42 of 47 cases ) among germ cell tumors , followed by embryonal carcinoma ( 40.0 % ) , and teratocarcinoma ( 26.6 % ) .
C0036631
seminoma
C0205851
germ cell tumors