One of the subtypes of pemphigus, intercellular IgA dermatosis, is a rare AIBD characterized by the deposition of IgA autoantibodies at keratinocyte cell surfaces and is divided into two major subtypes, SPD‐type (Figure 3a,b) and intraepidermal neutrophilic dermatosis (IEN)‐type.31, 32. Here, CD79A is linked to Platelet storage pool disease.