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Reduced clinicopathological influence of hormone-dependence on breast carcinomas in women older than 70 years.

In order to evaluate the influence of hormone dependence on the features of infiltrating ductal carcinoma of the breast we have assayed the cytosolic levels of estrogen receptor (ER), progesterone receptor (PR), pS2 and cathepsin D in 53 women aged over 70 years and in 95 women aged between 55 and 70 years. Tumor size, axillary involvement, distant metastasis, histological grade, ploidy and S-phase were taken into account. Carcinomas of women aged over 70 did not show higher concentrations or higher positive results for ER and PR than those of women in the 55-70-year age group. In older patients, negativity for ER was associated only with higher S-phase fraction, while negativity for PR was not associated with any of the parameters analyzed. In the younger subgroup, negativity for ER was associated with larger tumor size, higher S-phase fraction, lymph node involvement, histological grade 3 and lower pS2 values. Negativity for PR was associated with the same parameters, as well as with a higher frequency of recurrence. Our results suggest a reduced influence of hormone dependence on the clinicopathological features of breast carcinomas in patients older than 70 years compared with women aged between 55 and 70 years.