CANCER - GENERAL |
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Cancer is a class of diseases or disorders characterized by uncontrolled division of cells and the ability of these cells to invade other tissues, either by direct growth into adjacent tissue through invasion or by implantation into distant sites by metastasis. This unregulated growth is caused by damage to DNA, resulting in mutations to genes that encode for proteins controlling cell division. Many mutation events may be required to transform a normal cell into a malignant cell. These mutations can be caused by chemicals or physical agents called carcinogens, by close exposure to radioactive materials, or by certain viruses that can insert their DNA into the human genome. Mutations occur spontaneously, or are passed down generations as a result of germ line mutations.
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CANCER - TESTICULAR |
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Testicular cancer is a type of cancer that develops in the testicles, a part of the male reproductive system. In the United States, about 8,000 to 9,000 diagnoses of testicular cancer are made each year. Over his lifetime, a mans chance of getting testicular cancer is roughly 1 in 250 (four tenths of one percent, or 0.4%). It is most common among males aged 1540 years. Testicular cancer has one of the highest cure rates of all cancers: in excess of ninety percent; essentially one hundred percent if it has not spread. Even for the relatively few cases in which the cancer has spread widely, chemotherapy offers a cure rate of at least fifty percent.
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