Palliative radiotherapy for synchronous bilateral lung cancers.

Scant information is available about the outcomes of patients with synchronous bilateral lung cancers (SBLC) treated with radiation. We report on 32 patients with SBLC who were treated for palliation by external beam irradiation during a 19-year period. The overall median survival was 7 months; 20 individuals (63%) survived at least 6 months. Among the evaluable patients, the complete/partial subjective and objective response rates were 100% and 60%, respectively. Survival was not significantly influenced by the total dose applied. Radiotherapy is effective for palliation of symptoms associated with SBLC. However, the dismal prognosis of SBLC managed by nonradical radiotherapy alone warrants investigation of treatment using curative doses of radiotherapy or chemotherapy with radiotherapy.