"Keratotic sandal" is  seen in which of the following?: (A) Reiter's disease, (B) Pityriasis rubra pilaris, (C) Tinea versicolor, (D) Sezary syndrome
Answer is B. Pityriasis rubra pilaris present with red hyperkeratotoc follicular papules and thickening of palms & soles.
Often the thickening on sole is so thick that it appears like a sandal - termed as "Keratotic sandal"