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
A  25-years old female complains of discharge of blood from a single duct in her breast. The most appropriate treatment is 
Select and explain. 
A. Incision and drainage, B. Microdochectomy, C. Radical mastectomy, D. Antibiotics
B: Microdochectomy
Answer: B: Microdochectomy 
Explanation: This is a case of duct papilloma. Treatment is microdochectomy.