ROS1 and neoplasm: The analysis, conducted on genomic DNA of a tumor extracted from formalin-fixed paraffin-embedded (FFPE) tissue, targeting frequently mutated 59 genes (including EGFR, KRAS, ALK, ROS1, BRAF, HRAS, NRAS, NTRK, AKT1, PIK3CA, KIT, and PDGFRA), disclosed no gene mutations or fusions.