When you visit your doctor with concerns about breast pain, tenderness or a lump, there are common tests they might perform: mammogram: an X-ray of the breast to help distinguish between a benign and malignant mass ultrasound: use of ultrasonic sound waves to produce an image of the tissue MRI: used in conjunction with other tests, another noninvasive imaging test used to examine breast tissue biopsy: removal of a small amount of breast tissue for testing Two categories reflect the nature of the cancer: noninvasive in situ : cancer has not spread from the original tissue stage 0 invasive infiltrating : cancer cells have spread to surrounding tissues stages 1-4 The tissue affected determines the type of cancer: ductal carcinoma: cancer forms in the lining of the milk ducts most common lobular carcinoma: cancer in the lobules of the breast where milk is produced sarcoma: cancer in the breast's connective tissue rare Geneticists are starting to learn how genes affect the growth of cancer and have even identified one: HER-2: HER-2 in cancer cells fuels their growth. Excellent health benefits are attainable when you neurontin for tooth pain from highly-regarded pharmacies even if you need low-cost Parahk holds an M.