the patients of breast lobular hyperplasia were 234 (37.99%), which 83 cases were bilateral breast; the patients of fibroadenoma were 34(5.52%), who were all unilateral and single focus of disease; the patients of mastocarcinoma were 2(0.32%).

• 结果双乳未见明显异常为346例(占56.；17%25)；乳腺小叶增生234例(占37