Chronic autoimmune mucocutaneous disease against desmosomes in epidermis (bind keratinocytes)
Mortality 5-15% sec to complications of long-term steroid therapy.
Pemphigus vulgaris
Febrile
Bullous pemphigoid
Diffuse distribution
Toxic epidermal necrolysis
Varicella
Dermatitis herpetiformis
Smallpox