Actual interest of carcinoma in situ is due to relative progress in survival percentages in spite of great progress in methods of treatment in the last years, and to possible big advances in early detection by cytological methods. The attitude of the radiotherapist depends on the answer given to 2 fundamental questions: whether carcinoma in situ is, or is not a real cáncer, and if it is a cancer, what is the best treatment. It can be shown, that arguments in favor of surgical treatment are not stronger than arguments for radiation, and this is demonstrated. There is no doubt that in special cases surgery as well as radiation therapy have each their absolute indications and very particular advantages.

It defined the early stages of uterine cancer discussing the theoretical and technical arguments militate in favor of radiotherapy, and concluded that the stadium "O" of cervical cancer could, by far, treated with radium uterovaginal ; stage 1 with radiotherapy alone or with radical surgery, with equal chances of success, according to the merits of each case; and stage II with radiation therapy alone or with preoperative radiotherapy. The initial stages of endometrial cancer should be treated with radium-uterovaginal followed by radical surgery until further notice. Has glimpsed the possibility of improving the current results as a result of advances in building megavoltage units, the technical improvement and knowledge in radiology.

Actual interest of carcinoma in situ is due to relative progress in survival percentages in spite of great progress in methods of treatment in the last years, and to possible big advances in early detection by cytological methods. The attitude of the radiotherapist depends on the answer given to 2 fundamental questions: whether carcinoma in situ is, or is not a real cáncer, and if it is a cancer, what is the best treatment. It can be shown, that arguments in favor of surgical treatment are not stronger than arguments for radiation, and this is demonstrated. There is no doubt that in special cases surgery as well as radiation therapy have each their absolute indications and very particular advantages.