Sensoryneural hearing loss with predominantly fall in 2000Hz secondary to connexin 26 gene mutation

Mutations in the connexin 26 gene result in prelocutive sensorineural hearing loss beginning in childhood, usually severe or profound, although it have been reported slight to moderate hearing loss with some mutations. We present the case of a girl who had a hearing loss with predominantly fall in 2000Hz presenting a biallelic mutation in the connexin 26 gene (M34T/N206S). After a review of the findings of our case and in the medical literature we can conclude that patients with prelocutive sensorineural hearing loss in the frequency 2000 Hz require to rule out mutations in the connexin 26 gene like the M34T.