Deafness, Autosomal Dominant 65, also known as dfna65, is related to deafness, onychodystrophy, osteodystrophy, impaired intellectual development, and seizures syndrome and nonsyndromic hearing loss. An important gene associated with Deafness, Autosomal Dominant 65 is TBC1D24 (TBC1 Domain Family Member 24). Affiliated tissues include brain, and related phenotypes are progressive hearing impairment and abnormal vestibular function