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Lactiferous ducts are ducts that converge and form a branched system connecting the nipple to the lobules of the mammary gland.When lactogenesis occurs, under the influence of hormones, the milk is moved to the nipple by the action of smooth muscle contractions along the ductal system to the tip of the nipple.
The tumor is round or ovoid, elastic, and nodular, and has a smooth surface. The cut surface usually appears homogenous and firm, and is grey-white or tan in colour. The pericanalicular type (hard) has a whorly appearance with a complete capsule, while the intracanalicular type (soft) has an incomplete capsule.
A breast mass, also known as a breast lump, is a localized swelling that feels different from the surrounding tissue. [1] Breast pain , nipple discharge , or skin changes may be present. [ 1 ] Concerning findings include masses that are hard, do not move easily, are of an irregular shape, or are firmly attached to surrounding tissue.
Ultrasound has 68–98% sensitivity of detecting ILC. ILC shows irregular or angular mass with hypoechoic or heterogenous internal echoes, ill-defined or spiculated margins, and posterior acoustic shadowing. [10] Loss of E-cadherin is common in lobular carcinoma but is also seen in other breast cancers. [11]
Duct ectasia of the breast, mammary duct ectasia or plasma cell mastitis is a condition that occurs when a milk duct beneath the nipple widens, the duct walls thicken, and the duct fills with fluid. This is the most common cause of greenish discharge. [1] Mammary duct ectasia can mimic breast cancer. It is a disorder of peri- or post-menopausal ...
Naysayers will cite a lack of research as a reason to not prescribe testosterone as a menopause treatment, but a growing body of research is finding little negative effect on breast tissue, the ...
[1] [2] Mammary alveoli are the site of milk production and storage in the mammary gland. [1] [2] Mammary alveoli cluster into groups called mammary lobules, and each breast may contain 15 to 20 of these lobules. [1] [2] The lobules drain milk through the lactiferous ducts out of the nipples. [1] [2]
A blocked milk duct has the following common symptoms: [2] [3] Low fever and breast infection; Pain in a particular side of the breast; Swollen or tender lump in the breast; Slower milk flow; a small white blister on the nipple called a milk bleb; swelling or redness of the breast; areas of the breast that are hot or warm to touch