Abstract
Between 1989 and 2000, we performed breast-conserving surgery in 27 (47.4%) of 57 patients with non-invasive ductal carcinoma and evaluated the results in the 24 of them in which concurrent radiotherapy was not performed. One of the 24 cases evaluated had been treated by endocrine therapy and surgery, and the other 23 had been treated by surgery alone. Axillary lymph node dissection was performed in only one case. The 5-year disease-free survival rate was 82.4%. The breast recurrence rate was examined in 23 cases after excluding the one case with postoperative regional axillary node metastasis, in which the presence of breast recurrence was not determined. Breast recurrence was diagnosed in three (13.0%) of the cases, and the 5-year breast recurrence rate was 14.1%. Five of 6 cases were treated by additional secondary resection in order to take more than 2cm out of cancer nest border following duct-lobular segmentectomy, so that there were no local recurrences in the case with abnormal discharge from the nipple. The histological type of the recurrent lesions in the breast included non-invasive ductal carcinoma in 2 cases and invasive ductal carcinoma in one case, in which the infiltrated site was microscopic.
