Several genes are involved in the pathogenetic process of WS, such as melanocyte inducing tyrosinase related protein 1, transcription factor (MITF), endothelin (EDN) 3, paired box 3 (PAX3) transcription factor, EDN receptor type B (EDNRB), Snail homolog 2 (SNAI2) and sex-determining region Y-box containing gene 10 (SOX10), accompanied with varying frequencies [3]. Here, PAX3 is linked to Werner syndrome.