[The problem of ovarian cancer after preceding gynaecological operations. Case report with special reference to endometriosis (author's transl)].

5 cases of ovarian cancer following hysterectomy are presented. Prophylactic salpingo-oophorectomy is discussed. After age 45, a prophylactic salpingo-oophorectomy should be performed. After age 50, the ovaries should always be removed along with a hysterectomy. A case of ovarian adeno-carcinoma in the right parametrium two years following radical surgery for wide spread endometriosis is described in detail.