...com豆丁网 as，SH），复杂型增生 （complex endometrial hyperplasias，CH）及不典型增生（atypical endometrial hyperplasias，AH）---种类型。
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然而癌前病变是已经公认的肠化生还是更难于探及的不典型增生。
Yet is the premalignant lesion the readily recognized intestinal metaplasia or the more difficult to detect dysplasia?
目的：探讨多原发性肺癌与支气管上皮异型增生及肺泡上皮不典型腺瘤性增生之间的关系。
Objective: to investigate the correlation of multiple primary lung cancer with bronchial epithelial dysplasia and atypical adenomatous hyperplasia of bronchiolo-alveolar epithelium.
方法应用免疫组织化学方法检测45例鼻咽癌组织及20例鼻咽黏膜不典型增生组织中COX - 2的表达。
Methods The expression of COX-2 was detected by immunohistochemical method in specimens from 45 NPC patients and 20 cases of nasopharyngeal atypical hyperplasia.
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