Differential diagnosis of hypopigmentation or depigmentation

​Differential diagnosis of hypopigmentation or depigmentation 
-Hansen’s disease / leprosy
-lichen sclerosis 
-morphea (localized scleroderma) 
-intralesional corticosteroids 
-liquid nitrogen treatment 
-leukoderma 
-halo nevi or halo around melanoma 
-tuberous sclerosis 
-piebaldism / white forelock 
-seborrheic dermatitis 
-pityriasis alba / pityriasis complex 
-tinea versicolor / pityriasis versicolor 
-albinism 
-vitiligo 
-post inflammatory