NTRK3 and central nervous system cancer: However, variant-specific analysis of 447 tumors of other categories (colorectal carcinomas, gliomas, salivary gland carcinomas, sarcomas, thyroid tumors, etc.)identified two (0.5%) instances of NTRK3 translocation (EML4::NTRK3 (E2;N14) in microsatellite-unstable colorectal carcinoma and ETV6::NTRK3 (E5;N15) in salivary gland carcinoma).