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Cancer. 1986 Nov 1;58(9):1995-2002.

A clinical and histopathologic analysis of the results of conservation surgery and radiation therapy in stage I and II breast carcinoma.


One hundred eighty women with clinical Stage I or II operable breast carcinoma were treated by radiotherapy following local tumor excision at Yale-New Haven Hospital through 1980. With a median follow-up time of 6.9 years, the actuarial 5-year overall and disease-free survival rates were 82% and 78%, respectively. The 5-year actuarial breast-recurrence-free survival rate was 92%. Several clinical-histopathologic features and treatment parameters were assessed for their significance as predictors of local breast failure or distant relapse. Cox lifetable regression analysis showed that patients with clinical Stage II carcinomas had significantly worse overall and relapse-free survival rates, but clinical stage alone had no effect on the rate of breast recurrence. Furthermore, a decrease in overall and disease-free survival was evident when necrosis was present in the tumor or when patients had an infiltrating lobular carcinoma. Breast recurrence-free survival was also influenced adversely by the presence of these two tumor features, especially when either tumor necrosis or infiltrating lobular carcinoma was found in conjunction with clinical Stage II lesions. Other histologic features such as grade, vascular invasion, perineural invasion, or the presence of an intraductal component of carcinoma did not affect outcome, nor did the treatment techniques employed appear to have a differential effect.

[Indexed for MEDLINE]

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