CCDC6 and neoplasm: There were 30 cases (30 of 38, 78.9%) that had a KIF5B-RET fusion (25 cases corresponding to the KIF5B[15]-RET[12] variant, two corresponding to the KIF5B[16]-RET[12] variant, and the remaining three cases corresponding to KIF5B[23]-RET[12], KIF5B[24]-RET[11] and KIF5B[24]-RET[9] variants, respectively), six cases (6 of 38, 15.8%) exhibited a CCDC6(1)-RET(12) fusion, one tumor (1 of 38, 2.6%) presented a NCOA4(6)-RET(12), and one sample (1 of 38, 2.6%) contained a AKAP13(35)-RET(12) fusion.