CD79A and pemphigus foliaceus: Pemphigus disorders are caused by autoantibodies directed against the desmosomal proteins desmoglein (Dsg) 1 and 3 and mainly include pemphigus vulgaris (PV), pemphigus foliaceus (PF), paraneoplastic pemphigus (PNP) and immunoglobulin A (IgA) pemphigus (4–6).