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恶性肿瘤是引起腰骶丛神经病的原因之一。作者评价了28例病人的放疗疗效。半数以上病人年龄在40～60岁,为肛门、直肠、乙状结肠癌患者。用超高压外照射(~(60)Co,4Mv/6Mv直线加速器或24Mv电子感应加速器)。照射野面积192～696cm~2,通常包括骨盆,腰骶椎或腹主动脉旁区。有1例还包括腹股沟转移灶。前后相对野,四野箱形照射或单一前野照射。每日一次,每周5次,总量在10Gy/5次到50Gy/25次。大部分病人的疗效评价在放疗完成或随访4～6周后进行。主观完全或
Malignant tumors are one of the causes of lumbar plexus neuropathy. The authors evaluated the efficacy of radiotherapy in 28 patients. More than half of the patients were between 40 and 60 years of age and were anal, rectal, and sigmoid colon cancer patients. Ultra-high pressure external irradiation (~(60)Co, 4Mv/6Mv linear accelerator or 24Mv betatron). Irradiation field area 192 ~ 696cm ~ 2, usually including the pelvis, lumbosacral or abdominal aortic area. One case also included inguinal metastases. Before and after the relative field, four field box irradiation or single field irradiation. Once a day, 5 times a week, the total amount is 10Gy/5 times to 50Gy/25 times. The evaluation of the efficacy of most patients was performed after completion of radiotherapy or after 4 to 6 weeks of follow-up. Subjectively complete or