<prompt> Hypopigmented lesions are seen inMelasmaLichen planus pigmentosusUrticaria pigmentosaPityriasis alba  <response>: In melasma brown grey brown macular pigmentation with well defined scalloped margins. Pigmentation darkens on sun exposure.Lichen planus produces hyper pigmented lesions.Pityriasis Alba produces scaly hypo pigmented macules. 