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What is A child came with similar lesions over elbows, shaft of penis and forearm. shows pinhead discrete but grouped papules over right elbow. Diagnosis? and explain in detail?
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.