Well-differentiated (tubular) carcinoma of the breast. A clinicopathologic study of 145 pure and mixed cases.
In this study, 145 well-differentiated (tubular) carcinomas were divided into two groups: 90 pure tubular carcinomas and 55 which were mixtures in that they contained a component of infiltrating duct carcinoma occupying less than half the tumor. Axillary lymph node metastases developed in 29% of women in the mixed group, but occurred in only 6% of the pure group. The prognosis was good in both groups, with five-year-actuarial survival rates in the pure and mixed groups of 100% and 93%, respectively. Residual carcinoma was present in the mastectomy specimen in 28% of the pure group, and in 40% of the mixed carcinomas. In addition, there was a recurrence rate of 50% in patients with pure tubular carcinoma treated by excisional biopsy. These features indicate simple excision of tubular carcinoma is likely to be inadequate therapy and that a mastectomy is warranted. Axillary node dissections should be done when there is a component of infiltrating duct carcinoma because of the increased risk of axillary lymph node metastasis.
D000206:Actuarial Analysis; D000230:Adenocarcinoma / Q000473:pathology* / Q000601:surgery; D000328:Adult; D000368:Aged; D001943:Breast Neoplasms / Q000473:pathology* / Q000601:surgery; D002285:Carcinoma, Intraductal, Noninfiltrating / Q000473:pathology* / Q000601:surgery; D005260:Female; D006801:Humans; D008207:Lymphatic Metastasis; D008408:Mastectomy; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local; D011379:Prognosis