<unk>  is the decrease or absence of melanin in the hair, eyebrows, or eyelashes that may occur in a patient with Waardenburg syndrome, tuberous sclerosis, Vogt-Koyanagi-Harada syndrome, or other disorders affecting melanin-containing tissues.  This condition may present as singular or multiple white patches on the hair resembling birthmarks.
Poliosis
Scoliosis
Kyphoscoliosis
Knock knees
Hip dysplasia 
Swan neck deformity
Dactyly
Osteopoikilosis