This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nipple Discharge, Subject name: Surgery
Green discharge is M. Commonly seen with 
Select and explain. 
A. Duct papilloma, B. Duct ectasia, C. Retention cyst, D. Fibroadenosis
B: Duct ectasia
Answer: B: Duct ectasia 
Explanation: Ans is 'b' ie Duct ectasia "A black or green discharge is usually due to duct ectasia and its complications." - Bailey & Love.Duct ectasia is dilatation of lactiferous ducts associated with periductal inflammation, the pathogenesis of which is unknown.