Lactating adenoma is a benign tumour of breat occuring during pregnancy and in the post partum period. It's origin is controversial. It is supposed to be a variant of tubular adenomas,
fibroadenoma, or lobular hyperplasia, that reflects physiological changes occuring due to
Grossly, it is well circumscribed, yellowor tan coloured, and firm and rubbery, anddoes not have a true capsule.
Clinically, it is generally located in the anterior portion of the breast, and is firm, mobile and non-tender on physical examination.
Sonographically, it is usually oval, sharply circumscribed solid mass with prominent central
tubular structures (dilated ducts).