Carcinoma of the superior pulmonary sulcus treated with surgery and/or radiation therapy

Abstract

This is a retrospective analysis of 50 patients with carcinoma of the superior pulmonary sulcus, treated with curative intent at the University of Florida between October 1964 and October 1981. Treatment groups included preoperative radiation therapy and surgery (40 patients), radiation therapy alone (7 patients), and surgery with postoperative radiation therapy (3 patients). There was a minimum 2-year follow-up. Local control was obtained in 8 of 26 evaluable patients (31%) treated with preoperative radiation therapy and surgery, 2 of 6 patients treated with radiation therapy alone, and 0 of 2 patients treated with surgery and postoperative radiation therapy. Twelve (30%) of 40 patients receiving planned preoperative radiation therapy did not undergo definitive surgery. Absolute survival free of disease at 5 years by treatment group for patients at risk was 3 of 30 (10%) with preoperative radiation therapy and surgery, 0 of 3 with surgery and postoperative radiation therapy, and 2 of 7 with radiation therapy alone. Since one third of the patients who received low- to moderate-dose preoperative radiation therapy did not undergo definitive surgery, and since there is a small but significant survival with radiation therapy alone, it seems unwise to give moderate-dose preoperative radiation therapy, which implies an unfavorable radiation technique for the unresectable cases. The recommendation is to treat patients with lesions believed to be resectable by initial surgical resection followed by high-dose radiation therapy in selected patients with questionable margins or positive lymph nodes. Those patients with borderline or apparently unresectable lesions are recommended to be treated with radiation therapy alone.