乳管内乳头状瘤比较少见,但可见于任何年龄的成年妇女。多发生在近乳头的扩张乳管中,患者乳头不时溢出血性液体。肿块不一定能扪查到,如果扪查到,多数仅有几毫米直径。6％～8％的病例有癌变的可能。应早期手术切除。在术中一般用细探针定位,以指示方向,找到肿瘤。我们在实践中感到细探针定位法虽可指示方向,但由于乳头状瘤所在的乳管颜色、质地均与周 Intraductal papilloma is rare, but it can be seen in adult women of any age. Occurred in the dilated milk duct near the nipple, the patient’s nipple spilled bloody fluid from time to time. The lumps are not always visible, but most of them are only a few millimeters in diameter if they are found. 6% to 8% of cases have the possibility of cancer. Surgical resection should be performed early. Fine needle positioning is usually used during surgery to indicate the direction and find the tumor. In practice, we feel that although the fine needle positioning method can indicate the direction, the color and texture of the milk duct where the papilloma is located are similar to those of the week.