PCDH15 and Hodgkins lymphoma: These individuals were presented with non-syndromic HL and no visual or vestibular abnormalities, similar to double heterozygous Pcdh15+/av−3J and Ush1g+/js mice thus suggesting true digenism for PCDH15-USH1G (Zheng et al., 2012; Schrauwen et al., 2018).