Types of Breast Cancer
Ductal Carcinoma in Situ (DCIS) refers to abnormal cells found within the milk ducts that are considered non-invasive as the cells have not spread from the ducts to the surrounding breast tissue. This is an early form of cancer that in some cases could potentially become invasive and spread to other tissues.
Lobular Carcinoma in Situ (LCIS) refers to abnormal cells found within the lobules, the milk-producing glands, of the breast. While it is uncommon for LCIS to develop into invasive cancer, this condition is linked to an increased risk of developing invasive breast cancer later in life.
Invasive ductal carcinoma is a cancer that begins in the ducts (passages that carry milk from the glands to the nipple) and has spread to the surrounding breast tissue.
Secretory Breast Carcinoma is a cancer that occurs due to an over secretion of mucin in the tumor. It is considered a subtype of invasive ductal carcinoma but is prone to metastasis and local recurrence. It is a slow-growing cancer that is best to treat aggressively and it represents less than 0.1% of all cases of invasive breast cancer. Possible treatment options include chemotherapy, radiation and mastectomy; treatment decisions are made on an individual basis due to the rarity of this subtype of breast cancer.
Invasive lobular carcinoma is a cancer that starts in the lobules (groups of glands that create milk) and has spread to breast tissue nearby.
Lobular Breast Cancer Alliance provides more information on invasive lobular carcinoma (ILC) and Living with Lobular Breast Cancer in Canada is a private Facebook group that shares research and resources for those with ILC.
Metaplastic breast cancer is a rare type of cancer that begins as one type of cancer cell that changes into another type of cancer cell. Less than one percent of breast cancers are metaplastic and it can be treated with surgery, radiation, and chemotherapy.
Inflammatory breast cancer is a rare form of breast cancer that causes the breast to appear red, swollen and tender, often resembling an infection. It is an aggressive, locally advanced (breast cancer that has spread to the nearby tissues and/or lymph nodes, but not to the other organs) form of cancer that blocks the lymph vessels in the skin of the breast. Symptoms of inflammatory breast cancer can develop very quickly and are often similar to other disorders. If you notice rapid swelling, skin changes or notice unusual sensations including pain or itching speak to your physician.