Besides, serum BCL2 levels were significantly greater in PC cases with the T4 stage than in those with the T2 stage (P = 0.04), On the other hand, NEAT1 and TGF-β1 serum levels did not differ significantly between various T stages (P = 0.3, 0.49, respectively). Here, TGFB1 is linked to pachyonychia congenita.