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A retrospective review was undertaken of 129 patients with isolated local-regional recurrence of breast cancer following radical or modified radical mastectomy. The overall survival and disease-free survival for these patients five years from the time of local-regional recurrence was 36 and 13%, respectively. The clinical stage at initial diagnosis, the number of histologically positive nodes at mastectomy, menopausal status, and the location of the recurrence (chest wall vs. nodal) were all found to have no significant effect on survival or disease-free survival. On the other hand, the number of recurrences, the size of the largest recurrence, and the time interval between mastectomy and recurrence (disease-free interval) had definite prognostic significance. A single recurrence, the size of the largest recurrence being less than or equal to 1 cm, and a disease-free interval of longer than 24 months predicted a good prognosis; on the other hand, multiple recurrences, the size of the largest recurrence being greater than 1 cm, and a disease-free interval of less than 24 months predicted a bad prognosis. Eighty-one percent of the patients ultimately developed distant metastases; the incidence of distant metastases was the same for patients with factors predicting a good prognosis as it was for those with factors predicting a bad prognosis. The time to appearance of distant metastases, however, was significantly longer in the former group of patients than in the latter. The information from this analysis should be useful in designing future clinical trials involving patients with isolated local-regional recurrence of breast cancer.
Bedwinek et al. (Fri,) studied this question.