Recurrence Patterns and Survival After Combined Radical Mastectomy and Postoperative Irradiation

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Abstract
Recurrence patterns were analyzed in 323 patients treated by radical mastectomy, 219 of whom received postoperative irradiation. Thirty-five patients with inner quadrant lesions and negative axillary nodes received postoperative regional node irradiation; 33 of these 35 patients are alive without recurrence from 2 to 22 years later. Six of 219 patients receiving postoperative regional lymph node irradiation developed recurrence in the treated area. In patients with positive axillary nodes, 27% of all recurrence developed initially in the chest wall region, and an additional 10% of patients developed distant metastases in addition to chest wall recurrence. The high incidence of chest wall recurrence in patients with four or more positive nodes, and in patients with two or three positive nodes and primary lesions over 3 cm in diameter who did not receive chest wall irradiation, suggests that the maximal benefit from postoperative irradiation would not be realized in prospective, randomized studies without the use of chest wall irradiation postoperatively in these categories of patients.

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