<unk>  (also known as a "Comedo nevus") is characterized by closely arranged, grouped, often linear, slightly elevated papules that have at their center keratinous plugs resembling comedones.:634:774
Nevus comedonicus
Nevus depigmentosus
Eccrine nevus
Nevus anemicus
Dermatosis papulosa nigra
Naevus Lipomatosus superficialis
Melanocytic nevus
Linear verrucous epidermal nevus