- Cancer - Wikipedia
Possible signs and symptoms of cancer include a lump, abnormal bleeding, prolonged cough, unexplained weight loss, and a change in bowel movements [1] While these symptoms may indicate cancer, they can also have other causes [1] Over 100 types of cancers affect humans [7][8]
- List of cancer types - Wikipedia
Cancer is a group of diseases that involve abnormal increases in the number of cells, with the potential to invade or spread to other parts of the body [1] Not all tumors or lumps are cancerous; benign tumors are not classified as being cancer because they do not spread to other parts of the body [1]
- Causes of cancer - Wikipedia
Although there are over 50 identifiable hereditary forms of cancer, less than 0 3% of the population are carriers of a cancer-related genetic mutation and these make up less than 3–10% of all cancer cases [3] The vast majority of cancers are non-hereditary ("sporadic cancers")
- What Is Cancer? - NCI
Explanations about what cancer is, how cancer cells differ from normal cells, and genetic changes that cause cancer to grow and spread
- Cancer - Simple English Wikipedia, the free encyclopedia
Even with the same type of cancer, different people may have different symptoms, and may react to treatments differently; their cancer also may grow or spread at different speeds
- Cancer | Definition, Causes, Types, Treatment | Britannica
Cancer is a disease characterized by the uncontrolled multiplication of abnormal cells in the body There are numerous types of cancers, with certain types being major causes of sickness and death worldwide
- History of cancer - Wikipedia
Cancer patient treatment and studies were restricted to individual physicians' practices until World War II when medical research centres discovered that there were large international differences in disease incidence
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