乳腺导管内乳头状瘤比较少见 ,病人多为 4 0～ 6 5岁女性 ,常发生于近乳头的扩张乳管中。我院自 1985～ 1998年间共收治乳头状瘤恶变 2 2例。分析如下。1　临床资料2 2例均为女性。年龄 2 9～ 75岁 ,平均 5 2岁 ,4 0～ 6 5岁占 6 8 1%。占同期乳腺导管内乳头状瘤的 4 4 %。自 Breast ductal papilloma is relatively rare, the majority of patients 40 to 65-year-old female, often occurs in the expansion of the near-nipple ducts. In our hospital from 1985 to 1998 were treated 22 cases of malignant papilloma. analyse as below. 1 Clinical data 22 cases were female. The age ranged from 29 to 75 years old, with an average of 52 years and 68 to 60 years old. Accounting for 44% of intraductal papilloma in the same period. from