News Roundup [abridged Versions Appear In The Paper Journal]

Genetic factors may underlie link between breast density and cancer risk

BMJ 2003; 326 doi: (Published 12 April 2003) Cite this as: BMJ 2003;326:782
  1. Scott Gottlieb
  1. New York

    The same genetic factors that determine a woman's breast density may also influence her risk of breast cancer, a new study has found, with the results published in the journal of the National Cancer Institute (JNCI 2003;95:556-8).

    Patterns of fat, connective tissue, and glandular tissue in the breast as seen by mammography vary greatly from woman to woman. Past studies have shown that women with denser breast tissue—meaning their breasts contain less fat—have up to six times the breast cancer risk of women whose breasts are less dense. The reason for an association between breast density as observed on mammography and a woman's risk of breast cancer is not clear.

    But in …

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