<unk>  is a chronic inflammatory disease of unknown etiology, characterized by 1-2mm, discrete and uniform, shiny, flat-topped, pale flesh-colored or reddish-brown papules that may be hypopigmented in blacks, and, occasionally, minimal scaling is present or can be induced by rubbing the surface, a disease process that usually affects children and young adults, and is painless and nonpruritic, though protracted pruritus may be occur.
Lichen nitidus
Lichen myxedematosus
Lichen spinulosus
Tinea barbae
Lichen sclerosus
Tinea corporis
Lichen striatus
Alopecia mucinosa