A 52 yo gentlement was diagnosed as lung adenocarcinoma T4N3M1 stage IV on March 2016. While waiting for EGFR mutation, he was having 2 cycle of chemotherapy of cisplatin-pemetrexed-bevacizumab...On March 2019 he showed PD, and his plasma NGS on March 2019 showed EGFR del 19, EGFR T790M, BRAF V600E, TP53 R273H, TP53 Y220C.