A child came with similar lesions over elbows, shaft of penis and forearm. shows pinhead discrete but grouped papules over right elbow. Diagnosis?
Lichen nitidus : Grouped pin head sized papules on- Elbow- Forearm- Dorsum of hand- Shaft of penis Histology shows :Elongated rete ridgesLymphocytic infiltrateTogether they give " claw clutching appearance" Phrynoderma: keratotic papules with intrafollicular plugging on extensor surfaces.
Lichen nitidus
Lichen planus
Scabies
Phrynoderma
Lichen planus and Other papulosquamous disorders