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AmMed Cancer Center > Treatment Information by Cancer Type

Treatment Information by Cancer Type

Cancer Information :

 

There are more than 100 different types of cancer diseases. Cancer occurs when, for unknown reasons, cells become abnormal, such that they divide without control or order.

The metamorphosis of cells from being normal to becoming cancerous requires several separate, different gene alterations. Eventually, altered genes and uncontrolled cell growth may produce a tumour that can either be benign (not cancerous) or malignant (cancerous).

Malignant tumours are dangerous because they can invade, damage and destroy nearby tissues and spread to other parts of the body. Cancer cells can also break away from a malignant tumour and enter the bloodstream or the lymphatic system. This is how cancer spreads within the body. A benign tumour will not spread to other parts of the body, but local tissue may be damaged and the growth may need to be removed surgically.

Cancer that spreads to other parts of the body is the same disease and has the same name as the original cancer.

When breast cancer spreads, it is called metastatic breast cancer even though it is found in another part of the body. For example, breast cancer cells that have spread to the bones is called metastatic breast cancer, not bone cancer.

While the occurrance of many types of cancers are beyond control, all cancers caused by cigarette smoking and heavy use of alcohol may be prevented completely. The American Cancer Society estimates that in 2001 about 172,000 cancer deaths in the United States were attributed to tobacco use, and about 19,000 cancer deaths were related to excessive alcohol use, frequently in combination with tobacco use. Colorectal cancer is another type of cancer than may be highly preventable, and one that may be detectable early through screening.

Regular screening examinations by a healthcare professional can result in the detection of cancers of the breast, colon, rectum, cervix, prostate, testis, oral cavity, and skin at earlier stages, when treatment is more likely to be successful.

Screening-accessible cancers account for about half of all new cancer cases. The 5-year relative survival rate for these cancers is about 81%. If all of these cancers were diagnosed at a localised stage through regular cancer screening, this rate would increase to 95%.