. A lady presents with itching around the breast and greenish foul smelling discharge from the
nipple. She had a similar episode before. What is the most likely dx?
a. Duct papilloma
b. Duct ectasia
c. Breast abscess
d. Periductal mastitis
e. Mammary duct fistula
Ans. The key is B. Duct ectasia. [Duct ectasia of the breast or mammary duct ectasia or plasma cell mastitis is a condition in which the lactiferous duct becomes blocked or clogged. This is the most common cause of greenish discharge. Mammary duct ectasia can mimic breast cancer. It is a disorder of peri- or post-menopausal age].