carcinoma-in-situ ( cis ) which was present in the seminiferous tubules adjacent to the tumours was positively stained for fer in 94 % of the specimens whether the tumour was a seminoma or a non-seminoma indicating a functional relationship of cis to seminomatous as well as to non-seminomatous germ cell tumours .
C0036631
seminoma
C0205851
germ cell tumours