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 from –
Clues are :-


Erythmatous follicular papules
Involvement of trunk
Thickening of Palm and soles (Palmo-Planter keratoderma)
The most important one is presence of normal skin within the lesions


Diagnosis is nothing other than pityriasis rubra pylaris.
Pityriasis rosea
Pityriasis rubra pilaris
Psoriasis
Seborrheic dermatitis
Pityriasis rubra pilaris