anti-P200 pemphigoid

    The patient is a 71 year old man who presents with a generalized blistering and urticarial eruption; there was no mucosal involvement.    The clinical impression of bullous pemphigoid however a previous biopsy was more consonant with either epidermolysis bullosa, linear IgA disease or bullous systemic lupus erythematosus based on the dominance of neutrophils and relative paucity of eosinophils. A repeat biopsy was done and sent to our laboratory for routine H and E, direct IF testing and serologic assessment (indirect IF studies). The results of these studies will be discussed presently.