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Altered intrauterine hormonal environment might predispose to both atypical cerebral asymmetry and breast cancer.We therefore investigated computed tomographic scans of 79 right-handed,white patients with breast cancer and 97 controls to assess the pattern of cerebral asymmetry.Women with breast cancer had a reversed pattern of cerebral asymmetry significantly more often than did controls(p<0.0001)for both frontal and occipital width.Our findings suggest that an intrauterine or early life factor,probably hormonal,could predispose to breast cancer in adulthood. |
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