NKX2-1 and familial papillary or follicular thyroid carcinoma: In addition to FOXE1, HABP2, NRG1, SRGAP1, DIRC3, TITF1/ NKX2.1 and PTCSC3, multiple other genes and chromosomal loci have been linked to families affected by non-syndromic FNMTC in linkage studies and/or whole-exome/whole-genome sequencing studies.