Adenocarcinoma refers to a type of cancer that begins in the glandular tissue cells that have a secretory function. Both the breast ducts and lobules contain a lot of glandular tissue. There are many glands that line the organs of the human body, thus adenocarcinomas can occur around the body too.
Each breast contains 15 to 20 lobes of glandular tissue, arranged like the petals of a daisy. The lobes are further divided into smaller lobules that produce milk for breast-feeding. Small tubes ducts conduct the milk to a reservoir that lies just beneath your nipple.
There are many types of breast cancer. The most common types are ductal carcinoma in situ, invasive ductal carcinoma, and invasive lobular carcinoma. The type of breast cancer is determined by the specific cells in the breast that are affected.
Ductal Carcinoma in Situ DCIS is a non-invasive breast cancer where abnormal cells have been contained in the lining of the breast milk duct. Inflammatory breast cancer is a less common form of breast cancer that may not develop a tumor and often affects the skin. Metastatic breast cancer is cancer that has spread beyond the breast, sometimes into the lungs, bones, or brain.
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Breast cancer is cancer that develops from breast tissue. Risk factors for developing breast cancer include being female, obesitylack of physical exercise, drinking alcoholhormone replacement therapy during menopauseionizing radiationearly age at first menstruationhaving children late or not at all, older age, prior history of breast cancer, and family history. The balance of benefits versus harms of breast cancer screening is controversial.
Cancer occurs when changes called mutations take place in genes that regulate cell growth. The mutations let the cells divide and multiply in an uncontrolled way. Breast cancer is cancer that develops in breast cells.
Not all breast cancers are the same. Understand what type of breast cancer you have and how it differs from other types of breast cancer. Once you've been diagnosed with breast cancer, your doctor will review your pathology report and the results of any imaging tests to understand the specifics of your tumor. Using a tissue sample from your breast biopsy or using your tumor if you've already undergone surgery, your medical team determines your breast cancer type.