掌握乳腺癌前病变病理诊断标准 ,在日常外检业务工作中具有重要意义 ,本文就其分类及诊断标准作一综述。1　乳腺癌癌前病变的概念病理学上一般把某些在组织形态学上有一定程度异型或增生活跃 ,经随访有一部分发展成癌的乳腺增生性疾病称为乳腺癌前病变。ＷＨＯ规定发展成恶性可 Grasp the pathological diagnostic criteria of breast precancerous lesions in the daily inspection of the business is of great significance, this article on its classification and diagnostic criteria are reviewed. A concept of breast precancerous lesions Pathology generally some of the morphological abnormalities or hyperplasia of some active follow-up part of the development of cancer of the breast hyperplasia called breast lesions. The WHO rules for the development of malignancy