目前,对癌症的病因虽未十分明嘹,疗效也还不够满意,但中外学者均一致认为:要提高癌症的疗效则必需有赖于早期诊断早期治疗。遗憾的是,当患者出现明显临床病象到医院就医时,癌肿多已属中晚阶段。因此,如何识别患者病状出现以前癌肿就已存在,这就是当前肿瘤防治工作中的一个重要研究课题。1957年松原正香等,倡用胎盘提出液作皮内试验用以诊断癌症,这种试验系抗体抗原的免疫反应,其有效成份为多糖体核组蛋白及组蛋白,对癌症病人可出现特异的阳性反应。以后日本一些学者相继作了改良和研究证明此法简便,诊断价值较高;但在我国一直未得到很好推广。1973年以后上海虹口第二医院及四 At present, although the cause of cancer is not very clear and the efficacy is still not satisfactory, both Chinese and foreign scholars agree that improving the efficacy of cancer must depend on early diagnosis and early treatment. Unfortunately, when patients have obvious clinical symptoms and go to hospital for medical treatment, cancer is mostly in the late stage. Therefore, how to identify patients before the onset of cancer has existed, which is an important research topic in current cancer prevention and control work. In 1957 Matsubara Masaharu et al. advocated the use of a placenta for the intradermal test for the diagnosis of cancer. This test is an immune response to antibody antigens. Its active ingredients are polysaccharides, nuclear histones and histones, which may be specific to cancer patients. Positive reaction. Later, some Japanese scholars have made improvements and researches to prove this method is simple and diagnostic value is high; but in our country has not been well promoted. Shanghai Hongkou No.2 Hospital and Fourth Hospital since 1973