Pretibial dystrophic epidermolysis bullosa

Abstract Epidermolysis bullosa is a group of mechano-bullous genetic disorders caused by mutations in the genes encoding structural proteins of the skin. Dystrophic epidermolysis bullosa is caused by mutations in the COL7A1 gene encoding collagen VII, the main constituent of anchoring fibrils. In th...

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Bibliographic Details
Main Authors: Elisabeth de Albuquerque Cavalcanti Callegaro (Author), Flavio Nappi (Author), Rosana Lazzarini (Author), Rute Facchini Lellis (Author)
Format: Book
Published: Sociedade Brasileira de Dermatologia, 2017-01-01T00:00:00Z.
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Summary:Abstract Epidermolysis bullosa is a group of mechano-bullous genetic disorders caused by mutations in the genes encoding structural proteins of the skin. Dystrophic epidermolysis bullosa is caused by mutations in the COL7A1 gene encoding collagen VII, the main constituent of anchoring fibrils. In this group, there are autosomal dominant and recessive inheritances. The pre-tibial form is characterized by the presence of blisters, milia, atrophic scars and lesions similar to lichen planus. The diagnosis is clinical and laboratory and subtypes are distinguished by means of immunohistochemical and ultrastructural studies, in addition to genetic differentiation. Electron microscopy and immunomapping are used in the diagnosis.
Item Description:0365-0596
10.1590/abd1806-4841.20175952