Monday, December 25, 2017 01:58 PM

PERSONAL HEALTH: WHEN CANCER STRIKES TWICE

In many cases, the development of a second cancer resulted from the same risk factors that most likely precipitated the first malignancy. These factors include tobacco use, obesity and infection with human papillomavirus (HPV). For example, a smoker who has been successfully treated for lung cancer may later develop bladder cancer, which is also related to smoking, as well as a second lung cancer. An HPV infection, which most often causes cervical cancer, can also cause cancers of the vagina, penis, rectum and throat. And obesity is a known risk factor[1] for at least 13 kinds of cancer, including cancers of the uterus, esophagus, stomach, liver, kidney, colon and pancreas.

Although much less common nowadays than in years past, sometimes the chemotherapy or radiation treatments used to control the first cancer cause genetic or other changes that lead to a new cancer. Examples include leukemia that can be induced by chemotherapy or radiation therapy, or uterine cancer caused by the drug tamoxifen used to treat breast cancer.

The Texas researchers, led by Caitlin C. Murphy, an epidemiologist, undertook the ...

News source: New York Times

See also: The Robotic Urologist