22 yo with recurrent blistering on the back of hands
-large blisters that heal with hyperpigmentation. Dx? Deficiency?
a) Porphyria cutanea tarda; Uroporphyrinogen decarboxylase; Heme
b) Bullous pemphigoid; Collagen VII; Collagen
c) Pemphigus vulgaris; Desmoglein; Desmosomes
d) Epidermolysis bullosa simplex; Keratin; Keratinocytes