Value of radiotherapy for tumour on the bronchial stump after resection for bronchial carcinoma.

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Abstract
Two groups were selected from 1000 patients who had lobectomy or pneumonectomy for bronchial carcinoma. The 1st group was of 26 patients with tumor affecting the mucosa of the resected bronchial margin reported histologically at the time of surgery. Twelve of these were given postoperative radiotherapy but with no apparent benefit, either in the incidence of recurrence of tumor at the bronchial stump or in 5-yr survival. The 2nd group was of 17 patients who developed recurrence of tumor at the bronchial stump, bronchoscopically confirmed, some time after surgery. In 6 of these cases the recurrence was detected while it was confined to the bronchial stump region, and these patients were then given radiotherapy. Five of the 6 survived 5 yr after radiotherapy, with complete eradication of the tumor recurrence confirmed by repeat bronchoscopy. In 11 cases the tumor recurrence was not detected until it had become more extensive. Radiotherapy may also have prolonged survival in some of these patients, although none survived 5 yr.