Word: cancerous
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...School of Public Health, said that MacMahon’s 1960 textbook was for many years “the bible for young epidemiologists.” Colleagues credited MacMahon with moving the focus of the Department of Epidemiology away from infectious diseases and toward chronic illnesses, such as cancer and diabetes. Much of MacMahon’s own research focused on the causes of breast cancer. During his tenure, he received accolades from the American Cancer Society and the American Public Health Association for his work in the field. Friends and colleagues remembered MacMahon yesterday not only...
...Florida, prostate-cancer specialist Dr. Jay Friedland uses the system at Naples Radiation Oncology, where he has treated 243 patients since the end of 2004. Only two had the cancer recur, an outstanding result. "The beauty of this is that it's five treatments in five days," says Friedland. Other radiation therapies require as many as 45 treatments over nine weeks...
CyberKnife has its limitations. It cannot be used to treat blood-borne cancers, and because it is a local therapy, it cannot be used alone to treat metastatic disease?when the cancer has spread to involve not only the original area, but other organs or tissues as well. It can, however, be combined with other systemic treatments, such as chemotherapy, to treat metastatic disease, and has often been used to treat solid metastatic tumors most commonly found in the lungs, liver, spine and brain. And the technology is continually evolving. The company's Synchrony program allows doctors to irradiate lung...
...original version of this article inaccurately stated that Accuray's CyberKnife system, which noninvasively delivers radiation to cancerous tissue, "can?t be used when the disease has metastasized or to treat very large tumors." Since CyberKnife is a local therapy, it cannot be used alone to treat metastatic cancer, but in fact it can be combined with other systemic treatments, such as chemotherapy, to treat metastatic disease. And CyberKnife has proved useful for treating large tumors...
...offered the example of cancer. “It takes multiple mutations to get cancer. If you find out that you have a few mutations already accumulated, it is not sure that you will get the additional mutation to get cancer, but you are more susceptible,” Liu said. “So these people can be more cautious in terms of cancer prevention or early detection...