On the other hand, biallelic WNT10A mutations were first identified in patients with syndromes of ectodermal dysplasia, Schopf–Schulz–Passarge syndrome (SSPS, OMIM#224750), and odontoonychodermal dysplasia (OODD, OMIM#257980) [9]. This evidence concerns the gene WNT10A and ectodermal dysplasia syndrome.