lactiferous ducts


Also found in: Dictionary, Thesaurus, Encyclopedia.

lac·tif·er·ous ducts

[TA]
one of the ducts, numbering 15-20, which drain the lobes of the mammary gland; they open at the nipple.

lac·tif·er·ous ducts

(lak-tif'ĕr-ŭs dŭkts) [TA]
Ducts numbering 15-20, which drain the lobes of the mammary gland; they open at the nipple.
Synonym(s): galactophore, mammillary ducts, milk ducts.

lactiferous

conveying milk.

lactiferous ducts
appearing first as epithelial diverticula which invade the mammary mesenchyme from the mammary buds, the precursors of the teats, these solid cords of cells later cavitate to produce lactiferous ducts.
lactiferous sinus
large cavity, continuous with the lactiferous ducts in mammary tissue, which serves as a reservoir for accumulated milk in the mammary gland until it is released at milking or suckling via the teat sinus and teat canal; is a combination of gland and teat sinuses.
References in periodicals archive ?
If we had applied this approach to our cases, we would have potentially missed 2 incidents of neoplastic proliferations limited to the nipple without involvement of the subareolar lactiferous ducts.
C, One of 4 lactiferous ducts involved by pagetoid extension of carcinoma.
Papillary lesions of the breast include the spectrum of benign, high-risk, and malignant pathologies and, thus, may involve major or smaller lactiferous ducts.
Lymph vessels of the adult mammary gland originate in the interlobular connective tissue and the walls of lactiferous ducts.
Microscopic sections from both right and left nipples showed LCIS involving lobules with pagetoid spread into lactiferous ducts.