<prompt> Dennie-Morgan fold is seen in:Atopic dermatitisSeborrheic dermatitisContact dermatitisDermatomyositis  <response>: Ans: A Atopic dermatitis Ref: Thappct DM. editor. Essentials in Dermatology, 2nd edn. New Delhi: JaypeeExplanation:ATOPIC DERMATITISChronic or relapsing dermatitis characterized by severe pruritus with age at onset between 2-6 months and associated with personal or family history of atopy asthma, allergic rhino- conjunctivitis, atopic dermatitisItch that rashesInfants - face, scalp, extensor of extremities, trunkChildren - flexural surface like neck, cubital or popliteal fossa, wrists, anklesAdolescents and adults - lichenification of flexures and handsHanifin and Rajka Criteria for Eczema DiagnosisMajor Findings 3 or more criteriaPruritusTypical morphology and distribution Flexural lichenification or linearity in adults; facial and extensor involvement - infants and childrenChronic relapsing dermatitisPersonal or family history of eczemaMinor Findings 3 or more criteriaXerosisIchthyosisPalmar hyperlinearityKeratosis pilarisType 1 skin test reactivityElevated IgE levelsNipple eczemaCheilitisRecurrent conjunctivitisDennie Morgan infraorbital foldKeratoconusAnterior suhcapsular cataractsOrbital darkeningPityriasis albaFacial pallorAnterior neck foldsWhite dermographism 