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Cancer risk for African-American women with benign breast disease factors Wayne State finds
Date:2/11/2013

DETROIT A Wayne State University researcher has identified characteristics in benign breast disease associated with future cancer risk in African-American women.

Michele Cote, Ph.D., associate professor of oncology in the School of Medicine and the Barbara Ann Karmanos Cancer Institute, recently reviewed data from about 1,400 20- to 84-year-old African-American women who underwent breast biopsies between 1997 and 2000. Researchers identified biopsies that showed benign breast disease (BBD) and also tracked subsequent breast cancers.

BBD is an established risk factor for breast cancer among Caucasian women, Cote said, but less is known about it in African-American women, who tend to get breast cancer earlier, in more aggressive forms and die more frequently from it.

In "Benign Breast Disease and the Risk of Subsequent Breast Cancer in African American Women," published recently in the journal Cancer Prevention Research, she said 68 percent of women studied showed nonproliferative BBD, and 29 percent had the proliferative form of the disease without atypia, a state in which cells are not growing normally but are not cancerous.

The remaining 3 percent showed proliferative BBD with atypia, a percentage similar to a group of Caucasian women studied recently by the Mayo Clinic. Women in Cote's study with the proliferative form of the disease with atypia were three times as likely to develop breast cancer as women without proliferative disease.

A number of pathological characteristics are associated with BBD and breast cancer. Her group examined several of those, including the presence of cysts, fibrosis and atrophy of breast components, known clinically as lobular involution.

Another characteristic, columnar alteration, a variation in the way cells are structured, was shown to be associated with increased breast cancer risk. Cote said because columnar alterations are highly correlated with proliferative
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Contact: Julie O'Connor
julie.oconnor@wayne.edu
313-577-8845
Wayne State University - Office of the Vice President for Research
Source:Eurekalert  

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