In our world today, breast cancer is one of the most common diseases and causes of death mostly among women. Breast cancer also occur in men though it is less common since the breast is being composed of identical tissues in both males and females.
There are numerous types of cancer. Cancer that begins in the skin or in tissues that line or cover internal organs is carcinoma. Leukemia is a form of cancer that begins in blood forming tissue such as bone marrow and will cause a large number of abnormal blood cells to be produced and enter the blood stream. Multiple myeloma and lymphoma cancers start in the cells of the immune system. Cancer that begins in the bone, cartilage, fat, blood vessels, or muscle is sarcoma. Each year in America, 211,000 women learn they have breast cancer. Other than skin cancer breast cancer is the most common type of cancer found in women is this country. Common symptoms of breast cancer include a change in how the breast or nipple feels and a change in how the breast or nipple looks.
Prior to introduction of mammography screening breast cancer was often diagnosed as a large lump in the breast, because women were not paying attention to the development of breast tumors. Introduction of mammography had significantly changed the natural history breast caner. In industrialized nations like the United States breast caner is most commonly detected on mammography screening. Mammography screening also brought a great sense of awareness to women and this has resulted in earlier detection of breast cancer.
Even if a woman does not get mammography screening, they are very much aware of the risk of development of breast cancer and thus tend to observe and even examine their breasts. Most women do self-breast examination in between mammograms. Because of this increased awareness, women presenting with locally advanced breast cancer are quite rare in the industrialized nations.
In some women breast cancer may have spread to distant organs, before mammography screening or symptoms showed the breast cancer. This can happen because early stage breast cancer does not usually cause any symptoms. If the cancer has spread to other organs these women may present with symptoms related to these organs. For example if the cancer has spread to the bone the woman may develop bone pain or bone fracture.
About the Author:
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