For example, tobacco smoke contains many carcinogens that have been proven to dramatically increase the risk of lung cancer. Most in situ carcinomas are highly curable. The case manager is a new concept that provides a guide through the complex system of health care by helping cut through red tape, getting responses to questions, managing crises, and connecting the patient and family to needed resources. A thin tube through which fluids can enter and leave the body. The basic unit of all living organisms.
Organs are clusters of cells that have developed specialized tasks.
The processes that control formation of new cells and death of old cells are disrupted in cancer. Prevention or reversal of disease using drugs, chemicals, vitamins, or minerals. While this idea is not currently widely used, it is a very promising area of study. The Breast Cancer Prevention Trial has shown that the drug tamoxifen can prevent some cases of breast cancer among women with high risk of this disease. However, the drug has some serious side effects.