LRP1B and thyroid cancer: Among the genes previously implicated in thyroid cancer, LRP1B (LDL Receptor Related Protein 1B) was found mutated in FTC and FVPTC negative cases (cases 27 and 8) and NCOR1 (Nuclear Receptor Corepressor 1) in 2 HCC negative cases (cases 28 and 30) (Figure 2 and Figure 3B–D).