A retrospective study on the clinicopathologic features of IgG/IgA pemphigus

To the Editor: IgG/IgA pemphigus describes a rare autoimmune blistering disorder characterized by clinical and histopathologic features of pemphigus mediated by IgG and IgA.1 Controversy exists as to whether it is a distinct disease, a transitional phase along a spectrum of IgG pemphigus to IgA pemphigus, or a heterogeneous disorder.1 In an effort to elucidate its clinical and histopathologic features, a retrospective study of 44 patients with IgG/IgA pemphigus was conducted.