PMP22 and bile duct papillary neoplasm: To our knowledge, only three patients suffering from IPN and AN received a cochlear implant (absence of information about CMT type or hearing loss type by Anzalone et al., 2018; auditory neuropathy and absence of variant in PMP22 or GJB1 by Goswamy, Bruce, Green, & O’Driscoll, 2012; cochlear and auditory nerve dysfunction with a point pathogenic variant in PMP22, c.193G>T, p.(Val65Phe) by Postelmans et al., 2006).