What is it?
The breasts or breasts are composed of fat, connective tissue and glandular. In this tissue are the milk-producing glands and ducts that carry milk to the nipple. Breast tissues are connected also with a group of lymph nodes located in the armpit. These nodes are key to the diagnosis of breast cancer, since cancer cells spread to other parts of the body through the lymphatic system. When speaking of sentinel node alluded precisely the nearest to where the cancer is located ganglion.
Diagnosis
Mammography is an imaging X-ray that detects the presence of tumor in the breast, before it is perceptible to the touch. Being the best detection method, experts recommend that all women this test are performed each year, from 50-55 years. To determine the severity of the cancer, more specific tests such as magnetic resonance imaging (MRI), ultrasonography, or biopsy, in which the affected part is taken in the laboratory to analyze the characteristics of cancer cells tissue are used.
Prevention
Self-examination and mammograms are the most useful tools to find suspicious lumps in their breasts. In general, mammography technique facilitates the detection of small lumps difficult to percivir by palpation of the breast. This type of test should be repeated annually after 45 years.
For more information see Link Breast Cancer