All targets (UBB, CCH, CCH/MMC, MTC) demonstrated increased expression (percentage of RNA sequencing reads) of MTC classifier genes CALCA (calcitonin-related polypeptide alpha) and CHGA (chromogranin A) with the highest number of reads corresponding to the areas of CCH/MMC and MTC. Here, CHGA is linked to medullary thyroid gland carcinoma.