[Experimental teratoma by fetectomy in the XXXX : influence of ovariectomy (author's transl)].

@entity35 @entity230 @entity5 @entity3
Forty-six female @entity35 were used. Twelve days after mating, all the fetuses were removed and fetal membrane with yolk sac were left outside of the uterus following the method reported by Sorbis and Vandeputte (1974). About the half of the @entity35 were ovariectomized at the laparotomy. The @entity35 were killed at 20 and 40 weeks after treatment and examined. No difference was observed in @entity5 incidence between fetectomy alone and fetectomy plus ovariectomy at both 20 and 40 weeks and it was about 70%. The size of @entity5 varied from 2 to 35 mm in diameter. The size of @entity5 tended to be greater in fetectomy plus ovariectomy compared with fetectomy alone at 20 weeks, but no significant difference was observed at 40 weeks between the two groups. Histologically the @entity5 were characterized by the presence of a variety of differentiated tissues. @entity3 to the visceral part were detected in 2 @entity35 of fetectomy alone and the @entity5 were diagnosed as yolk sac @entity5 . These results indicate that sex @entity230 might influence the teratocarcinogenesis.
