X-linked deafness 4

An X-linked nonsyndromic deafness characterized by progressive hearing loss with postlingual onset and earlier onset in males compared to females that has_material_basis_in mutation in the SMPX gene on chromosome Xp22.12.

Signs and symptoms

• High-frequency hearing impairment
• Sensorineural hearing impairment

Also known as: DFN6; DFNX4; X-linked progressive deafness 6; nonsyndromic sensorineural progressive deafness 6