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Clinical-pathologic study of early breast cancer treated by primary radiation therapy

Journal Article · · J. Clin. Oncol.; (United States)
OSTI ID:6941418
We performed a clinical-pathologic review of 231 patients with early breast cancer treated by primary radiation therapy. There were 27 patients with infiltrating ductal carcinoma treated with excisional biopsy whose tumors showed a constellation of histologic features: moderate or marked intraductal carcinoma in the tumor, intraductal carcinoma in the adjacent tissue, and high nuclear grade. These patients had a 5-yr local tumor control rate of 61% compared to 96% for similar patients whose tumors did not show all three features. Radiation dose to the primary tumor area influenced the likelihood of local recurrence in these 27 patients: 15 of these patients received 6000 rads or more to the primary tumor area and had a 5-yr local tumor control rate of 84%, compared to 48% for the 12 patients who received less than 6000 rads. These results indicate that a subgroup of breast cancer patients can be identified that has a high risk of local recurrence when an insufficient radiation dose (i.e., less than 6000 rads) is delivered to the primary tumor area.
Research Organization:
Department of Radiation Therapy, Harvard Medical School, Boston, MA
OSTI ID:
6941418
Journal Information:
J. Clin. Oncol.; (United States), Journal Name: J. Clin. Oncol.; (United States) Vol. 1:3; ISSN JCOND
Country of Publication:
United States
Language:
English

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