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The first cause of cancer was identified by British surgeon Percivall Pott, who discovered in 1775 that cancer of the scrotum was a common disease among chimney sweeps. [ citation needed ] The work of other individual physicians led to various insights, but when physicians started working together they could draw firmer conclusions.
The chance of survival depends on the type of cancer and extent of disease at the start of treatment. [11] In children under 15 at diagnosis, the five-year survival rate in the developed world is on average 80%. [17] For cancer in the United States, the average five-year survival rate is 66% for all ages. [5]
1900 – Swedish Dr. Stenbeck cures a skin cancer with small doses of radiation [4]; 1920s – Dr. William B. Coley's immunotherapy treatment, regressed tumors in hundreds of cases, the success of Coley's Toxins attracted heavy resistance from his rival and supervisor, Dr. James Ewing, who was an ardent supporter of radiation therapy for cancer.
The following is a list of cancer types. 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 ]
Cancer related to one's occupation is believed to represent between 2–20% of all cases. [17] Most cancer deaths caused by occupational risk factors occur in the developed world. [16] Job stress does not appear to be a significant factor at least in lung, colorectal, breast and prostate cancers. [18]
In the United States, overall cancer incidence rates were stable from 1995 through 1999, while cancer death rates decreased steadily from 1993 through 1999. [16] Again, this likely reflects the combined impact of improved screening, prevention, and treatment.
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Sidney Farber is regarded as the father of modern chemotherapy.. Cancer research has been ongoing for centuries. Early research focused on the causes of cancer. [1] Percivall Pott identified the first environmental trigger (chimney soot) for cancer in 1775 and cigarette smoking was identified as a cause of lung cancer in 1950.