<prompt> A child is presenting with erythmatous follicular papules on trunk. There are areas of normal skin within the lesions. There is thickening of Palms soles. This child is suffering fromPityriasis roseaPityriasis rubra pilarisPsoriasisSeborrheic dermatitis  <response>: Clues are :-Erythmatous follicular papulesInvolvement of trunkThickening of Palm and soles Palmo-Planter keratodermaThe most important one is presence of normal skin within the lesionsDiagnosis is nothing other than pityriasis rubra pylaris. 