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Breast cancer type: Lobular carcinoma in situ (LCIS)
Breast cancer type: Lobular carcinoma in situ (LCIS). Lobular carcinoma in situ is a type of breast cancer, which occurs mostly in premenopausal women, but it may also occur in men.
Lobular carcinoma in situ (LCIS) is an area (or areas) of abnormal cell growth, which increases people’s risk of invasive breast cancer. The lobule means that abnormal cells begin to grow in the tubules, which produce mammary glands at the end of the mammary duct.
Cancer refers to any cancer that starts in the skin or other tissues covering internal organs, such as breast tissue. In situ or “in its original location” means that abnormal growth remains within the leaflets and does not spread to surrounding tissues. People diagnosed with LCIS often have more than one lobule affected.
Although its name includes the term “cancer”, LCIS is not true breast cancer. LCIS can only show that the future risk of breast cancer is higher than average. Some experts prefer to call it “lobular neoplasia/lobular intraepithelial neoplasia” rather than “lobular carcinoma”. Neoplasia is a collection of abnormal cells.
LCIS is usually found before menopause, most commonly between 40 and 50 years of age. Less than 10% of women have entered menopause when they are diagnosed with LCIS. LCIS is very rare in men.
LCIS is considered a rare condition, but we do not know exactly how many people are affected. This is because LCIS does not cause symptoms and usually does not appear on mammograms. It is often diagnosed as a biopsy performed on the breast for some other reason.
(source:internet, reference only)