In an independent sample set , we identified 5 GIST cases lacking alterations in the KIT/PDGFRA/SDHx/RAS pathways , including two additional cases with FGFR1-TACC1 and ETV6-NTRK3 fusions .
O O O O O O O O O B-DiseaseOrPhenotypicFeature O O O O O I-GeneOrGeneProduct O O O O O O O B-GeneOrGeneProduct O I-GeneOrGeneProduct O O