<prompt> A 26 year male came with hypopigmented macule over chest with scratch sign positive. Diagnosis is:Hansens diseasePKDLPityriasis albaPityriasis versicolor  <response>: Hypopigmented patch over chest and trunk with fine scaling and scratch sign positive i.e appearance of scales on scratching is suggestive of Pityriasis versicolor which is a fungal intection caused by Malassezia. 