<unk>  is a thickening and increase in curvature of the nail. An affected nail may have many grooves and ridges, is usually brownish in color, and grows more quickly on one side than on the other.
Onychogryposis
Arthrogryposis
Chondrodystrophy
Onychodystrophy
Lethal congenital contracture syndrome
Muscular dystrophy
Phocomelia
Loxoscelism