Ductal adenoma of the breast

Last revised by Daniel J Bell on 17 Feb 2018

A ductal adenoma of the breast is a benign glandular tumor of the breast that usually fills and distends the ductal lumen.


They may occur in women of all ages, although the majority of patients are 60 years of age or greater 3.

Clinical presentation

Ductal adenomas usually present clinically as breast lumps which may mimic carcinoma; less commonly, they are associated with nipple discharge.


Ductal adenomas are usually single, occasionally multiple, nodular lesions occupying medium- and large-sized breast ducts but not major subareolar ducts. It can mammographically as well as macroscopically mimic breast malignancy 3-4.

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