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: Unknown
Using a small fine probe single lactiferous duct is excised.  What is the name of the procedure: 
Select and explain. 
A. Microdochectomy, B. Macrodochectomy, C. Hadfield operation, D. Webster operation
A: Microdochectomy
Answer: A: Microdochectomy 
Explanation: Ref. Sabiston Textbook of Surgery. Pg. 837
 

Microdoectomy is the excision of single lactiferous duct
Hadfield operation is central duct excision which is surgical removal of all lactiferous ducts under the nipple


It is done in Mammary duct ectasia (periductal mastitis)