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概念:通常情况下,把比正常组织或其它疾患更能发生癌的病理改变当做癌前病变处理。关于子宫内膜癌的组织发生,多认为雌激素作用下经过子宫内膜增殖症即囊腺状增殖、腺瘤样增殖和不典型增生发展到原位癌,进而到腺癌(浸润癌)。因此,历来将“不典型增生”一词理解为癌前病变,原位癌则意味着癌的开始。但是,子宫体癌国际分期(FIGO)的0期定义,即将不典型增生和原位癌看做同义词,换言之,二者之鉴别实在困难。由于这种原因,不仅把不典型增生,甚至于把子宫内膜增殖症
Concept: Often, pathological changes that are more cancerous than normal tissue or other disorders are treated as precancerous lesions. On the organization of endometrial cancer, and more that under the action of estrogen after endometrial hyperplasia that cystoid proliferation, adenomatous proliferation and atypical hyperplasia to carcinoma in situ, and then to adenocarcinoma (invasive carcinoma). Therefore, the word “dysplasia” has always been understood as precancerous lesions, carcinoma in situ means the beginning of cancer. However, the 0 stage definition of FIGO, which means atypical hyperplasia and carcinoma in situ, is regarded as synonymous. In other words, the identification of the two is very difficult. For this reason, not only the atypical hyperplasia, and even endometrial hyperplasia