Duct ectasia of breast

Duct ectasia of breast (or mammary duct ectasia) is a condition where there is an obstruction of the lactiferous duct.

Mammary duct ectasia can mimic breast cancer. It is a disorder of premenopausal age. Nipple retraction, inversion and sometimes bloody discharge may present.

Histologically dilation of the large duct is prominent. Pathogenesis may be a reaction to stagnent colostrum.

It can lead to pain in the nipple.