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Pretibial epidermolysis bullosa. Successful therapy with a skin graft.

A patient with pretibial epidermolysis bullosa was successfully treated with a skin graft. Ultrastructural examination revealed a decreased number of and rudimentary anchoring fibrils (AFs) in the pretibial area in contrast to normal AFs in the grafted skin obtained from a nonpredilection site. Our results indicate the importance of AFs in the pathogenesis of pretibial epidermolysis bullosa.