Keywords: C3, complement C3; DIF, direct immunofluorescence; Dsg, desmoglein; ELISA, enzyme-linked immunosorbent assay; IgG, immunoglobulin G; PF, pemphigus foliaceus; PV, pemphigus vulgaris; bullous disease; immunobullous; pemphigus foliaceus; pemphigus subtype transition; pemphigus vulgaris.