Humpath.com - Human pathology

Home > E. Pathology by systems > Reproductive system > Female genital system > Breast > mammary duct ectasia

mammary duct ectasia

Sunday 29 November 2015

Microscopy

- Broad areas of hypocellular fibrous tissue contain clusters of dilated ducts.
- Most of the lobules have disappeared.
- The dilated duct contains foamy histiocytes.
- The periductal tissue is infiltrated by lymphocytes.

- In the late stage,

  • the ductal lumen is filled with lipid material and foamy histiocytes.
  • The periductal fibrosis is marked with collections of hemosiderin laden macrophages.