DO_rare_slim X-linked nonsyndromic deafness X-linked deafness 2 ORDO:383 disease_ontology An X-linked nonsyndromic deafness characterized by progressive conductive and sensorineural hearing loss and pathognomonic inner ear anomalies that has_material_basis_in hemizygous or homozygous mutation in POU3F4 or upstream regulatory elements of this gene on chromosome Xq21.1. DOID:0111737 MIM:304400 DFN3 DFNX2 DOID:0080783 Nance deafness X-linked deafness type 2 X-linked mixed conductive and neurosensory deafness X-linked mixed conductive and neurosensory hearing loss X-linked mixed conductive and sensorineural deafness X-linked mixed conductive and sensorineural hearing loss X-linked sensorineural deafness X-linked stapes gusher syndrome conductive deafness 3 with stapes fixation conductive deafness with stapes fixation mixed deafness with perilymphatic gusher