Skin and coeliac disease, a lot to think about: a case series

Coeliac disease (CD) is an autoimmune disease, characterised by a permanent sensitivity to gluten. It is being progressively recognised as a multisystemic disease, with multiple extraintestinal manifestations. Skin conditions (eg, dermatitis herpetiformis) are an example of its manifestations; however, its underlying mechanisms are still not well understood. This article presents three cases of uncommon skin conditions in patients with a history of CD. Two of them concern linear IgA bullous dermatosis and erythema nodosum, which have been described in the literature as having potential associations with CD, though only a few cases were reported. The third case corresponds to pityriasis lichenoides–a rare lymphoproliferative disorder of unknown aetiology–, which has no correlation with CD in the literature reviewed. The authors aim to draw attention to the possibility of CD as a potential predisposing factor for the occurrence of these skin diseases.

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