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Title: Second cancers following radiotherapy for cervical cancer

Journal Article · · JNCI, J. Natl. Cancer Inst.; (United States)
OSTI ID:6794568

Incidence of second primary cancers was evaluated in 7,127 women with invasive cancer of the cervix uteri, diagnosed between 1935 and 1978, and followed up to 38 years (average, 8.9 yr) in Connecticut. Among 5,997 women treated with radiation, 449 developed second primary cancers compared with 313 expected (relative risk . 1.4) on the basis of rates from the Connecticut Tumor Registry. Excess incidence was noticeable 15 years or more after radiotherapy and attributed mostly to cancers of sites in or near the radiation field, especially the bladder, kidneys, rectum, corpus uteri, and ovaries. No excess was found for these sites among the 1,130 nonirradiated women. The ratio of observed to expected cancers for these sites did not vary appreciably by age at irradiation. The data suggested that high-dose pelvic irradiation was associated with increase in cancers of the bladder, kidneys, rectum, ovaries, corpus uteri, and non-Hodgkin's lymphoma but, apparently, not leukemia, Hodgkin's disease, breast cancer, or colon cancer.

Research Organization:
Environmental Epidemiology Branch, Division of Cancer Cause and Prevention, National Cancer Institute, National Institutes of Health, Bethesda, MD
OSTI ID:
6794568
Journal Information:
JNCI, J. Natl. Cancer Inst.; (United States), Vol. 69:5
Country of Publication:
United States
Language:
English