Inflammatory diseases -- Common papulosquamous disorders -- Less common papulosquamous disorders -- Other papulonodular disorders -- Non-infectious granulomatous disorders - Connective tissue diseases -- Facial inflammatory dermatoses -- Common hyperpigmented dermatoses -- Less common hyperpigmented dermatoses -- Common hypopigmented dermatoses -- Less common hypopigmented dermatoses -- Infiltrative dermatoses -- Miscellaneous -- Infectious diseases -- Bacterial infections -- Parasitoses -- Mycoses -- Viral infections -- Hair and nail diseases -- Nonscarring alopecias -- Scarring alopecias -- Inflammatory nail conditions -- Onychomycosis and other nail infections -- Traumatic nail disorders -- .