Elderly people
tense blisters, can be hemorrhagic
autoimmune: IgG, C3l subepidermal blisters
Negatice Nikolsy's sign
usually very itchy at first
oral steroids; can use lower doses, ie 0.25-0.5 mg/kg
can also use other immunosuppressants
can also use topical steroids
treat with vitamin D and bisphosphonate
recurrence can occur