Basement membrane zone deposits of immunoglobulins and complement in a patient with pemphigus vulgaris.

A patient with pemphigus vulgaris is presented. In addition to the intercellular deposits of immunoglobulin and complement in the Malpighian layer which is consistent with pemphigus vulgaris, concomitant granular deposits of IgG and C3 were demonstrated at the dermal epidermal junction, similar to the findings in lupus erythematosus.