<unk>  is a deformation of the nails that can result from cancer chemotherapy which includes bleomycin, hydroxyurea, or 5-fluorouracil. It can include discoloration of the nail, or dyschromia.
Onychodystrophy
Onychogryposis
Chondrodystrophy
Tooth and nail syndrome
Onychauxis
Loxoscelism
Zaspopathy
Congenital myopathy