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A form of epidermolysis bullosa, a group of mechano-bullous disorders characterized by structural skin fragility, recurrent blister formation and erosion of the skin and mucous membranes occurring spontaneously or after mild trauma. Epidermolysis bullosa simplex is characterized by intraepidermal tissue separation that occurs within the basal keratinocytes at the bottom layer of epidermis. EBSSH is an autosomal dominant epidermolysis bullosa simplex, presenting at birth with extensive skin defects on the extremities, leaving behind hypopigmentation and atrophy with a whirled pattern. Cutaneous fragility and generalized blistering persist during childhood and decrease in adulthood. Adult patients have dyspigmentation and atrophy of the skin, scars, follicular atrophoderma, sparse body hair, progressive diffuse alopecia of the scalp, diffuse palmoplantar keratoderma, and nail changes.




Epidermolysis bullosa


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