lactiferous ducts

(redirected from mammary ducts)

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.
Farlex Partner Medical Dictionary © Farlex 2012

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.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
References in periodicals archive ?
The majority of breast cancers develop in the inner cells that line the mammary ducts and are 'fed' by the hormones estrogen or progesterone.
Essentially, the genetic changes increased the branching density of mammary ducts in the breasts, helping mothers provide sufficient vitamin D and fat to their babies through lactation.
Breast tissues MPM diagnostic features Normal breast (1) Epithelial cells inside acinus generate strong tissue TPEF signal, showing the regular arrangement and uniform cell size (2) Collagen fibers inside lobule emit strong SHG signal, exhibiting circular morphological feature Fibroadenoma (1) Mammary ducts are distinctly compressed lesion (2) Collagen fiber increases in density relatively, appears less organized, and becomes shorter Fibrocystic (1) The cysts are visualized with lumen filled disease with cystic fluid (2) The collagen fibrous tissues surrounding the cysts are denser compared to normal breast tissue
Spindle cell proliferation extended close to a mammary duct (Figure 1(d)); however, it must be noted that these lesions did not arise from the breast parenchyma but included smooth muscle fibres of nipple and were in close proximity to mammary ducts.
Histologically, the branching mammary ducts and associated periductal fibrous stroma converge from the peripheral breast tissue towards the nipple; thus the water molecules may follow a less restricted path and diffuse preferentially along or parallel to the ducts [11].
Histopathological analysis showed that the lobules and acinars in the control group and group administered with FPEs alone showed no apparent hyperplasia, with few acinars and no clear secretion in the mammary ducts and lumens.
Similar to fibromatosis, peripheral lymphoid aggregates may be present, but entrapped mammary ducts and lobules are not present within these lesions.
Our finding of increased Ki-67 expression in the mammary ducts of 100-day-old rats after prenatal exposure to BPA suggests that increased susceptibility to DBMA-induced carcinogenesis is a possible consequence of BPA-mediated effects on cell proliferation.
Light massage can help increase circulation and promote lymphatic drainage, as well as relieve plugged mammary ducts.
The MammoView[TM] instrument line for breast endoscopy produces clear and precise video images, allowing direct observation of extremely confined sites such as the fining of the mammary ducts. The system includes a retractable dilator in a sheaf that gently opens the ductal orifice at the nipple.