乳管内乳头状瘤因病灶微小,临床不易触及,辅助检查没有特征性表现而难于诊断和治疗,特别是手术中因探查不到病灶而多行局部扩大切除,导致不必要的损伤。我院自2001年利用乳管镜术中定位切除单一乳管内肿瘤24例,临床效果满意。总结报告如下。1　资料与方法1.1　一般资料　2001年 Due to the small intraductal papilloma, clinically difficult to reach, the auxiliary examination is not characterized by the performance and difficult to diagnose and treatment, especially due to exploration of the lesion during surgery and multi-line expansion of the local excision, resulting in unnecessary damage. Our hospital since 2001, the use of ductoscopy in the removal of a single intraductal tumor in 24 cases, the clinical results were satisfactory. The summary report is as follows. 1 Materials and Methods 1.1 General Information 2001