Results 243 cases of mammary duct ectasia included 5 types by clinical manifestation:latent type(33 cases,13.6%),mass type(169 cases,69.5%),abscess type(15 cases,6.2%),fistula type(14 cases,5.8%) and coexistent type. (7 cases,2.9%).

• 结果243例乳腺导管扩张症患者包括五种类型；即隐匿型33例(13.；6%25)；肿块型169例(69