Invasive breast carcinoma (not otherwise specified) is the most common type of breast cancer. It starts in the cells lining the ducts of the breast and invades surrounding breast tissue. This type of cancer is often referred to as invasive ductal carcinoma. It is the most common form of breast cancer. The diagnosis of invasive …
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Encapsulated papillary carcinoma is a type of breast cancer that is usually non-invasive. Non-invasive means that the cancer cells are confined to the ducts where they started and have not spread into the surrounding breast tissue. This type of tumor behaves in a similar way to ductal carcinoma in situ (DCIS), another non-invasive form of …
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Invasive apocrine carcinoma is a type of breast cancer. This type of breast cancer is made up of large pink cells that resemble the cells typically found in apocrine-type sweat glands in the skin. Invasive apocrine carcinoma is a rare type of cancer, representing approximately 1% of all breast cancers. What are the symptoms of …
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A borderline phyllodes tumor is an uncommon breast tumor that arises from the stroma (supportive connective tissue) within the breast. It has characteristics that fall between benign (non-cancerous) and malignant (cancerous) phyllodes tumors. Borderline phyllodes tumors grow faster and have a greater likelihood of recurrence than benign tumors, but they typically do not spread to …
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A benign phyllodes tumor is a rare, non-cancerous breast tumor that arises from the stroma (supportive connective tissue) within the breast. Unlike borderline or malignant types, benign phyllodes tumors grow slowly. They do not spread beyond their original location or to other parts of the body. What causes a benign phyllodes tumors? The exact cause …
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Invasive ductal carcinoma with apocrine features is a type of breast cancer. This type of breast cancer is composed of large, pink cells that resemble the cells typically found in apocrine-type sweat glands in the skin. Invasive ductal carcinoma with apocrine features is a rare type of cancer, representing approximately 1% of all breast cancers. …
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Sclerosing adenosis is a non-cancerous growth made up of small glands in the breast. The glands are surrounded by a type of connective tissue that resembles a scar. When large enough, this type of growth can be seen in imaging studies such as mammography, and a biopsy may be performed to rule out cancer. What …
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Secretory carcinoma is a rare type of breast cancer that usually grows slowly and has a good prognosis. It is called secretory carcinoma because the tumor cells produce material known as secretions, which can be seen inside the cells and in the spaces between them when examined under a microscope. Secretory carcinoma can occur in …
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An intraductal papilloma is a non-cancerous (benign) tumor that develops inside one of the small milk ducts in the breast. The word intraductal means “inside the duct,” and the word papilloma refers to the small finger-like projections (called papillae) that form within the duct. Milk ducts are tiny channels that carry milk from the glands …
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Pseudoangiomatous stromal hyperplasia (PASH) is a non-cancerous growth in the breast. It is made up of specialized cells called myofibroblasts. The growth is called “pseudoangiomatous” (which means “like blood vessels”) because the myofibroblasts form small slit-like spaces that look similar to blood vessels when examined under the microscope. What causes PASH? PASH appears to be …
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