MET and neoplasm: Rebiopsy from new metastases in thoracic lymph nodal stations 7 and 11R revealed acquired MET overexpression (MET-IHC with 3+ in 80% and 2+ in 20% of tumor cells) associated with high-level MET amplification identified by FISH (average MET-GCN/cell = 8.04, 77% of tumor cells with ≥6 copies, 15% of tumor cells with clusters), whereas only 5 MET gene copies were detected by NGS.