A 50-yr-old male presents with erythematous shallow erosions with blisters and yellowish scales over seborrheic areas. Oral mucosa is not involved. Immunopathology demonstrates IgG deposition on keratinocytes and autoantibodies against Dsg-1. The diagnosis is?
Pemphigoid Pemphigus vulgaris Pemphigus foliaceous Dermatitis herpetiformis