Endometrial cancer patients received intracavitary irradiation from the Anet-B installation using a high-energy 252-Cf source. Radical complex radiotherapy was given to 30 patients and radical-dose intracavitary irradiation--to 14 only. Incomplete palliative radiotherapy was carried out in 6 cases. Intracavitary radiation treatment preceded extirpation of the uterus and appendages in 10 cases. The complex radiotherapy proved effective in 93% of patients with stage I, II and III endometrial tumors.