Bullous systemic lupus erythematosus (BSLE) is a rare immunobullous disorder mediated by antibodies toward collagen VII in the setting of SLE, while linear IgA bullous dermatosis (LABD) is characterized by IgA deposition at the basement membrane as detected by direct immunofluorescence (DIF). Here, CD79A is linked to systemic lupus erythematosus.