Kahr E, Hackl A
Acta Med Austriaca Suppl. 1979;6:298-302.
Irradiation offers only a palliative treatment for malignant tumours of the gastrointestinal tract. Cancer of the rectum and rectosigmoid represents an exception; above all, preoperative irradiation improves a five year survival rate up to 15%. There is a better prognosis for non-Hodgkin's and Hodgkin's lymphomas of the entire gastrointestinal tract.
放射治疗仅为胃肠道恶性肿瘤提供姑息治疗。直肠癌和直肠乙状结肠癌是个例外；最重要的是，术前放疗可将五年生存率提高至15%。整个胃肠道的非霍奇金淋巴瘤和霍奇金淋巴瘤的预后较好。
