<unk>  (deafness, onychodystrophy, osteodystrophy, and mental retardation) syndrome is a genetic disease which is inherited in an autosomal recessive fashion.<unk>  is characterized by mental retardation, sensorineural deafness, abnormal nails and phalanges of the hands and feet, and variable seizures. A similar deafness-onychodystrophy syndrome is transmitted as an autosomal dominant trait and has no mental retardation. Some authors have proposed that it may be the same as Eronen Syndrome, but since both disorders are extremely rare it is hard to make a determination.
DOOR syndrome
Shone's syndrome
Winter-over syndrome
Fountain syndrome
Duane syndrome
Wartenberg's syndrome
Wilkinson's syndrome
Frey's syndrome