Pemphigus is a group of potentially life-threatening autoimmune mucocutaneous diseases characterized by epithelial blistering affecting cutaneous and/or mucosal surfaces, the term being derived from the Greek Pemphix (bubble or blister). Pemphigus affects 0.1-0.5 patients per 100,000 population per year (Ahmed et al., 1980; Becker and Gaspari 1993).

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