Crusted impetigo-like lesion on the face: A case of IgG/IgA pemphigus

In recent years, cases of IgG/IgA pemphigus, a rare subtype of pemphigus characterized by circulating IgG and IgA autoantibodies against the keratinocyte cell surface have been reported.^1-6 The cutaneous manifestations of IgG/IgA pemphigus were reported to resemble those of IgA pemphigus in form, including the presence of pustules and annular lesions.¹ However, no consensus on what eruptions are typical of IgG/IgA pemphigus has been established, due to the rarity of this disease. In this report, we describe a case of IgG/IgA pemphigus who developed severe crusted lesions on the seborrheic area that closely resembled facial crusted impetigo.

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