Some patients with GS have clinical findings that overlap with those of other syndromes, such as Treacher Collins syndrome [8], Townes–Brocks syndrome [9], CHARGE syndrome [10], Branchio-oto-renal spectrum disorders [11], and the phenotypic spectrum associated with mutations in EFTUD2 [12, 13]. This evidence concerns the gene EFTUD2 and Treacher-Collins syndrome.