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  • Title: Ductal carcinoma in situ (intraductal carcinoma) of the breast treated with breast-conserving surgery and definitive irradiation. Correlation of pathologic parameters with outcome of treatment.
    Author: Solin LJ, Yeh IT, Kurtz J, Fourquet A, Recht A, Kuske R, McCormick B, Cross MA, Schultz DJ, Amalric R.
    Journal: Cancer; 1993 Apr 15; 71(8):2532-42. PubMed ID: 8384070.
    Abstract:
    BACKGROUND: To evaluate the pathologic characteristics of the primary tumor relative to local control, survival, and freedom from distant metastases, an analysis was performed of 172 patients with ductal carcinoma in situ (intraductal carcinoma) of the breast treated with breast-conserving surgery and definitive breast irradiation. METHODS: The clinical records and pathology slides were reviewed from 172 women with ductal carcinoma in situ treated with breast-conserving surgery and definitive breast irradiation at multiple institutions in Europe and the United States. Central pathology review was performed by one pathologist without knowledge of the clinical outcome. The clinical outcome was measured in terms of local control, overall survival, cause-specific survival, and freedom from distant metastases. The median follow-up time was 84 months (range, 17-177 months). RESULTS: The pathologic parameters evaluated were histologic subtype, nuclear grade, amount of necrosis, and final pathology margin. The only pathologic parameter that correlated with the rate of local recurrence was the presence versus the absence of the combination of the histologic subtype of comedo carcinoma plus nuclear grade 3 (8-year actuarial rate of local recurrence of 20% versus 5%, respectively; P = 0.009 on univariate analysis; P = 0.017 on multivariate analysis). None of the pathologic parameters evaluated correlated with overall survival (all P > or = 0.16), cause-specific survival (all P > or = 0.13), or freedom from distant metastases (all P > or = 0.13). CONCLUSIONS: These results have demonstrated that there are important differences in the rate of local recurrence based on the pathologic characteristics of the primary tumor for women with ductal carcinoma in situ treated with breast-conserving surgery and definitive irradiation. However, the differences in local recurrence have not been associated with differences in survival or freedom from distant metastases. Careful follow-up for patients at increased risk for local recurrence is warranted because of the potential ability to salvage patients with local recurrence.
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