<prompt> An 8 years old boy from Bihar presents with a 6 months history of an ill defined, hypopigmented slightly atrophic macule on the face. The most likely diagnosis is:Pityriasis albaIndeterminate leprosyVitiligoCalcium deficiency  <response>: Indeterminate leprosy is characterized by: a. Solitary, hypo pigmentary patch over face in a child b. Scaling absent c. Atrophy present d. Patient from endemic area eg Bihar, Jharkhand, Chhattisgarh Differential diagnosis Pityriasis alba Intermediate leprosy Solitary, hypo pigmentary patch over face in a child Scaling - HO of Atopy - Ho Atrophy - Sensation Intact Impaired Histology Spongiosis Perifollicular paraneural lymphocytic infilterate Treatment Self limiting Paucibacillary- multi drug therapy 