Postinflammatory hyperpigmentation (acne, Psoriasis, atopic and contact dermatitis, lichen planus, trauma, drugs, and fixed-drug eruptions)
Melasma
Solar lentigines
Ephelides (freckles)
Café-au-lait macules
Nevi
Melanoma and precursors
Vitiligo
Pityriasis alba<unk> 
Postinflammatory hypopigmentation
Piebaldism
Tuberous sclerosis
Hypomelanosis of Ito
Tinea versicolor
Postinflammatory hyperpigmentation 
Tinea corporis
Melasma
Onychomycosis
Solar lentigines
Candida dermatitis
Ephelides 