FGFR3 and head and neck cancer: Most tumors including head and neck cancers and our current cases showed in-frame fusions mostly involving exon 18 (less frequently exon 19) of FGFR3, fused to exon 6, 8, 10, 11, and 14 and intron10/exon 11 of TACC3 [2, 3, 10, 11].