PTCSC2 and familial papillary or follicular thyroid carcinoma: Studies carried out showed that papillary thyroid cancer susceptibility candidate 2 (PTCSC2) was associated with vulnerability to familial origin non-medullary thyroid cancer (FNMTC) (Hińcza et al. 2019) and transcripts of PTCSC2 were downregulated in papillary thyroid carcinoma (PTC) tumors (He et al. 2015).