Posts Tagged ‘radiation therapy’

Does radiation therapy for cervical cancer increase your risk of later colorectal cancer?

Wednesday, April 23rd, 2014

logo1267406_mdIn a recent study published online in the journal Medical Oncology researchers found that young women treated with radiation for cervical cancer had a higher incidence of secondary colorectal cancer later in life than women who were not treated with radiation therapy. As a result they recommended earlier colorectal cancer screening for this group than earlier recommended starting at about 8 years after treatment instead of waiting until age 50.

Researchers analyzed data on over 64,500 cervical cancer cases collected between 1973 and 2009. Among cervical cancer survivors studied, colon, rectum, and anus tumors were found to be two to four times more frequent in the group treated with radiation than in the group not treated with radiation. The rate of colorectal cancer in the group receiving radiation for cervical cancer varied by time and began about 8 years after treatment and increased over time until after 35 years they were 3 to 4 times more like to develop colorectal cancer than women who had not had radiation.

Does Treatment for Hodgkin’s Disease Increase a Woman’s Risk of Breast Cancer?

Thursday, January 30th, 2014

logo1267406_mdA new study reported in Deutsches Arzteblatt International¬† concluded that girls treated with radiotherapy for Hodgkins disease during adolescence acquire a considerable risk of developing breast cancer based upon long term observational data/Five hundred ninety girls were followed for secondary breast cancer from 1978 to 1995 for a long period of time (average 17.8 years, maximun 33 years). Researchers estimated 19% of the girls treated with radiotherapy for Hodgkin’s disease developed secondary breast cancer within 30 years as a result of that therapy.¬† Because of these findings this high risk population is now evaluated by a structured screening program for breast cancer. The researchers recommended that when supradiaphragmatic¬† radiotherapy is necessary in girls over the age of 9, the parts of the chest exposed to the radiation should be kept as small as medically necessary to keep the risk of secondary breast cancer as low as possible.