NRG1 and neoplasm: In addition to basic information and quality control data, the testing report should also include tumor cell content, microscopic anatomical status, DNA extraction concentration, and purity. For NGS testing reports, positive fusion results should include chromosome breakpoint positions, participation of tyrosine kinase structural domains, and in-frame fusion data.NRG1/2gene fusion involving the tyrosine kinase structural domain and being in-frame fusion should be reported as fusion; otherwise, it should be reported as rearrangement