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      Annular epidermolytic ichthyosis: a case report and literature review ☆☆

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          Abstract

          Annular epidermolytic ichthyosis is a rare subtype of epidermolytic ichthyosis that is characterized by erythematous, polycyclic, and migratory scaly plaques accompanied by palmoplantar keratoderma. This report presents the case of an 8-year-old girl who developed migratory, erythematous, scaly plaques associated with palmoplantar keratoderma. The initial hypothesis was erythrokeratodermia variabilis et progressiva; however, the finding of epidermolytic hyperkeratosis in histopathological examination led to the diagnosis of annular epidermolytic ichthyosis.

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          Most cited references11

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          Cyclic Ichthyosis with Epidermolytic Hyperkeratosis: A Phenotype Conferred by Mutations in the 2B Domain of Keratin K1

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            A Novel Dinucleotide Mutation in Keratin 10 in the Annular Epidermolytic Ichthyosis Variant of Bullous Congenital Ichthyosiform Erythroderma

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              Annular epidermolytic ichthyosis: a unique phenotype.

              A 30-year-old white woman developed bullous and ichthyosiform skin lesions at the age of 8 months. Blistering ceased at puberty, but the hyperkeratotic plaques persisted. She subsequently delivered five children, two of whom were affected with a bullous type of ichthyosis. At the age of 27 years, she developed numerous annular and polycyclic, erythematous, hyperkeratotic plaques on the trunk and extremities that were pruritic, enlarged slowly, and then resolved. Histopathologic examination of these annular plaques revealed epidermolytic hyperkeratosis. Electron microscopic examination of the annular plaques showed interrupted perinuclear tonofilament rings consistent with either bullous ichthyotic erythroderma of Brocq or ichthyosis bullosa of Siemens. This kindred may represent a new phenotype of epidermolytic (acanthokeratolytic) ichthyosis.
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                Author and article information

                Contributors
                Journal
                An Bras Dermatol
                An Bras Dermatol
                Anais Brasileiros de Dermatologia
                Sociedade Brasileira de Dermatologia
                0365-0596
                1806-4841
                05 May 2020
                Jul-Aug 2020
                05 May 2020
                : 95
                : 4
                : 484-489
                Affiliations
                [0005]Dermatology Service, Santa Casa de Misericórdia de Porto Alegre, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, RS, Brazil
                Author notes
                [* ]Corresponding author. kiszewski@ 123456gmail.com
                Article
                S0365-0596(20)30118-5
                10.1016/j.abd.2019.09.030
                7335885
                32482553
                ff1501f7-430e-4fd4-881f-ccde2fc5a4e8
                © 2020 Sociedade Brasileira de Dermatologia. Published by Elsevier España, S.L.U.

                This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).

                History
                : 3 April 2019
                : 25 September 2019
                Categories
                Dermatopathology

                hyperkeratosis, epidermolyitic,ichthyosis,ichthyosiform erythroderma

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