This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
Green discharge is M. Commonly seen with ? 
Select and explain. 
A. Duct papilloma, B. Duct ectasia, C. Retention cyst, D. All
B: Duct ectasia
Answer: B: Duct ectasia 
Explanation: Ans is 'b' ie Duct ectasia