The data are analysed with appropriate statistical tests which are mentioned in the legends section.<h4>Results</h4>In a 23-year-old patient with thyroiditis, we identified a novel rearrangement leading to a BAIAP2L1-BRAF fusion that transforms immortalized human thyroid cells in a kinase and CC-domain dependent manner. This evidence concerns the gene BAIAP2L1 and thyroiditis.