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宫颈某些早期浸润癌可能只有局限的转移,且很可能用原位癌的治疗方法治愈,被称为宫颈微小浸润癌。但其形态学标准仍有争论。1974年FIGO分期法将宫颈微小浸润癌作为I_A期,但没有定出诊断标准。大多数研究者指出间质浸润深度应不大于5毫米,有的认为是1毫米,亦有认为是3毫米者。有些将间质浸润的融合型(confluent pattern)和淋巴浸润者除外。妇瘤科医师学会提出宫颈微小浸润癌的定义为浸润深度在基底膜下不大于3毫米,淋巴管和血管浸润的病例应除外。了解宫颈微小浸润癌的淋巴结和宫旁组织的确实转移率,就可以确定其诊断标准和简单治疗的适应性。
Some early invasive cancers of the cervix may only have limited metastases and are likely to be cured with treatment of carcinoma in situ, known as micro-invasive cervical cancer. However, its morphological criteria are still controversial. FIGO staging 1974 cervical micro-invasive cancer as I_A, but did not set the diagnostic criteria. Most researchers point out that the depth of interstitial infiltration should be no greater than 5 mm, some considered as 1 mm, and some as 3 mm. Some exclude confluent patterns of interstitial infiltration and lymph infiltrates. The Society of Oncologists proposes that microinvasive cervical cancer is defined as having an infiltration depth not greater than 3 mm below the basement membrane, except for cases of lymphatic and vascular invasion. Knowing the exact rate of metastasis to lymph nodes and paracancerous tissues of micro-invasive cervical cancer can determine its diagnostic criteria and the suitability for simple treatment.