Ductal Carcinoma occurs when abnormal changes take place in the cells which are found in the lining of a breast duct. Ductal carcinoma can be ‘In Situ’ meaning the abnormal or cancerous cells are contained inside the milk ducts and have not spread to the surrounding tissue.
It can also become ‘invasive’ when the cancerous cells spread beyond the layer of tissue in which it developed and starts growing into surrounding, healthy tissues.
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Lobular carcinoma occurs when abnormal cells are found in the lobules of the breast.
Lobular carcinoma will seldom become invasive cancer. However, having lobular carcinoma in one breast increases the risk of developing cancer in either breast.
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Inflammatory breast cancer is a rare form of invasive breast cancer in which cancer cells block lymph vessels in the skin of the breast. This type of breast cancer is called “inflammatory” as the breast becomes red and inflamed.
Most inflammatory breast cancers are invasive ductal carcinomas, which mean the cancer develops from cells that line the milk ducts of the breast and then spreads beyond the ducts, blocking the lymphatic vessels in the skin of the breast.
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Paget disease of the nipple occurs when abnormal cells are found in the nipple. The cancer usually affects the ducts of the nipple first then spreads to the nipple surface and the areola (the dark circle of skin around the nipple). The nipple and areola often become scaly, red, itchy, and irritated.
It’s common for people with Paget’s disease of the nipple to also have breast cancer somewhere else in the same breast.
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While breast cancer in men is uncommon, it’s not unheard of. Breast cancer in men accounts for around 1% of all breast cancer occurrences.
Breast cancer in men is the same disease as that which affects women. Male breast cancer can be early or advanced at diagnosis.
The most common types of male breast cancer include: invasive ductal carcinoma, Paget’s disease of the nipple, inflammatory breast cancer, infiltrating ductal carcinoma and ductal carcinoma in situ (DCIS). There are a number of factors that increase a man’s risk of developing breast cancer:
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