A 70-year-old man with a 20-year history of smoking...diagnosed with undifferentiated large-cell lung cancer of the left lung...Next generation sequencing (NGS, Geneseeq Technology Inc) found mutations in TP53, PIK3CA, and CD74...the patient received albumin-bound paclitaxel (200 mg on d 1 and 8) + carboplatin (450 mg on d 1) chemotherapy for four cycles. Chest CT (May 15, 2019) showed a 93 * 62 mm mass near the left upper mediastinum, and the efficacy was evaluated as progressive disease (PD).