Second, it is tethered by the hypoplastic lactiferous ducts. 第二，乳头被发育不全的乳管牵系而下陷。
A small benign intraductal papilloma appears here in a breast duct, typically in one of the main lactiferous ducts beneath the areola. 图示乳腺导管中的小的良性导管内乳头状瘤，代表性地出现于乳晕下的一个主要输乳管内。
Compressible non ascularized reflectie material in a widened lactiferous duct. Puncture reealed only signs of infection but no papilloma or carcinoma. 扩张的输乳管可压缩，其内有无血流信号的低回声物质，穿刺显示仅有感染征象，无乳头状瘤或癌。
The involved lactiferous duct, the subareolar abscess were incised and all the encompassing inflammatory tissues were excised in patients with mammary duct fistula. 结果：96%25的患者经手术治疗后彻底治愈，其中有5例复发，经导管切开彻底搔刮，去除炎症组织，充分引流换药后痊愈。
Methods Methylthioninium Chloride was infused into the lactiferous vessel from debouch of nipple discharge and followed a wire guide inserting,the galactophore was resected under the double-guide. 方法经乳头溢液孔注入亚甲兰,同时插入金属导丝两种方法同时引导手术切除病变乳腺管。
Results Every mammary duct system are made up by many times bifurcated branches of lactiferous duct as a duct tree. 90%of the bifurcation was Y shape, rarely with 6 bifurcated branches. 结果每一导管系统均由一输乳管反复分支而成，Y型分支占90%25以上，最多为6分支型;
