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由于腹部原发的恶性肿瘤大部分是属于对放射线有抵抗性的腺癌,对它的放射治疗必需有较大的剂量,而消化道粘膜对放射线是敏感组织,大剂量照射容易产生难治性的放射性溃疡、大出血,通常的照射法对正常肠腔防护困难,对恶性淋巴瘤放射敏感性高的例外,因此一般腹部消化系癌肿的放射治疗大部分被抛弃。为了解决这个问题,需作开创(开胸或开
Since most of the primary malignant tumors of the abdomen are adenocarcinomas that are resistant to radiation, a large dose is necessary for its radiation treatment. The gastrointestinal mucosa is a sensitive tissue to radiation, and high-dose irradiation is easy to produce refractory. Radioactive ulcers, massive hemorrhage, and normal irradiation methods are difficult to protect against normal intestinal cavities, with the exception of high radiosensitivity to malignant lymphomas. Therefore, radiotherapy for generalized abdominal digestive cancers is largely abandoned. In order to solve this problem, we need to create (open the chest or open