Using a small fine probe single lactiferous duct is excised. What is the name of the procedure:

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)