Preoperative chemoradiotherapy with carboplatin (AUC 1.5), paclitaxel (40 mg/m2), and concurrent extracorporeal radiation (40 Gy) was used to treat a Pancoast tumor (clinical T3N0M0), without causing adverse events. Then left upper lobectomy was performed along with mediastinal lymph node dissection plus resection of the chest wall and Th1 nerve root. Histological examination revealed a pathological complete response. This multimodal regimen was feasible and achieved a good response, so it seems worthwhile to evaluate the clinical effectiveness of the therapy in a cohort study.