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[Radiotherapy for adenocarcinoma of the uterine cervix].

One hundred three patients with adenocarcinoma of the uterine cervix treated with radiotherapy between 1975 and 1992 were evaluated. The results for 24 patients treated with radiotherapy alone were as follows: The overall 5-year survival rates for Stages I + II (N = 12) and III + IV (N = 12) were 52% and 16%, respectively, lower than those for squamous cell carcinoma (stage I: 89%, II: 54%, III: 44%, IV: 19%). The overall response rate was 79.1%, and the recurrence rate was 54.2% (local recurrence: 29.2%, distant metastasis: 33.3%). In Stage I + II patients with an intracavitary irradiation dose of 40 Gy (LDR) or more, there was no local recurrence. In stage III + IV patients, local recurrence was recognized in spite of the high dosage of intracavitary irradiation. The results for 79 patients treated with combined irradiation and operation were as follows: The overall 5-year survival rates for Stages I, II, III and IV were 76%, 60%, 57%, and 0%, respectively. The incidence of lymph node metastasis was 30.4%, and for Stages I, II, III and IV was 26.7%, 34.6%, 28.6%, and 100%, respectively. This showed that adenocarcinoma had a higher incidence of lymph node metastasis after the early stage. The recurrence rate for patients with lymph node metastasis was 75.0%, significantly higher than 25.4% for patients without lymph node metastasis (p < 0.001). To improve prognosis, 40 Gy or more of intracavitary irradiation dose (LDR) and systemic chemotherapy to prevent distant metastasis are recommended for stage I and II cases. For stage III and IV cases, it was thought to be difficult to control local disease with radiation alone. Additional treatment should be used for these cases, i.e. intraarterial infusion, chemotherapy, hyperthermia and so on.