A 26 year male came with hypopigmented macule over chest with scratch sign positive. Diagnosis is:: (A) Hansen's disease, (B) PKDL, (C) Pityriasis alba, (D) Pityriasis versicolor
Answer is D. 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.