<unk>  is diagnosed base on history, biopsy of the affected skin, and testing either a blood sample or a skin sample for the antibodies that cause pemphigus.
Pemphigus foliaceus
Pemphigoid nodularis
Giant cell lichenoid dermatitis
Bullous pemphigoid
Pityriasis amiantacea
Pemphigus erythematosus
Pityriasis lichenoides chronica
Mucous membrane pemphigoid