This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Breast, Subject name: Surgery
Percentage of malignancy in duct ectasia is 
Select and explain. 
A. No risk, B. 5:01, C. 1.2 :1, D. 10:01
A: No risk
Answer: A: No risk 
Explanation: Ans. (a) No risk(Ref. Schwartz 10th edition Page 511, Bailey 26th edition page 806)* The periductal mastitis mimics like cancer and hence mammography must be done.* Otherwise there is no risk of cancer in Duct ectasia