The results showed that for all the genes analyzed (BRAF, EIF1 AX, FOXE1, KRAS, PDGFRA, PIK3 CA, PTEN, TERT), there was a general trend of significantly (p-value < 0.05) lower expression levels in thyroid cancer samples compared to normal tissues. This evidence concerns the gene PDGFRA and thyroid gland carcinoma.