Comedones are seen in :: (A) Pityriasis, (B) Lichen planus, (C) Adenoma sebaceum, (D) Acne vulgaris
Answer is D. Ans is 'd' Acne vulgaris Primary lesion of Acne Vulgaris is comedonesOpen comedones are Black Heads*Closed comedones are White Heads*Comedones can evolve intoPapulesPustules &CystsSite of Appearance (requires presence of Sebaceous gland)Face (MC)*ShoulderBack & Upper chest