Keratosis punctata

Confluent reticulate papillomatosis (Gougerot-Carteaud)

Perforating folliculitis

LICHENOID PAPULES

Lichen planus

Papular granuloma annulare

Verruca plana

Lichen nitidus

Lichen striatus

Lichen amyloidosis

Molluscum

Sarcoidosis

Lichenoid drug eruption

Frictional lichenoid (in atopics)

Secondary lues

Lichen scrofulosorum

Lichen sclerosus et atrophicus

Lichen simplex chronicus

Lichen spinulosus

Lichen ruber moniliformis

Lichen myxedematosus

Lichenoid seborrheic keratosis

Lichenoid actinic keratosis

Bowenoid papulosis (genitals)

Cowden's disease (lichenoid papules on the face)

Gianotti-Crosti (acral lichenoid papules)

LINEAR PAPULES

Lichen striatus

Linear verruca vulgaris or verruca plana

Nevus unius lateris

Linear porokeratosis

Lichen planus

Linear epidermal nevus

Ichthyosis hystrix

Nevus verrucosus

Contact dermatitis

Herpes zoster (usually vesicular)

Granuloma annulare

Bites (papular urticaria)

Jellyfish stings (usually vesicular)

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