A case of pemphigus foliaceus arising during the administration of D-penicillamine was reported. A 72-year-old woman with systemic sclerosis developed flaccid vesicles and crusted erythema of the skin after administration of D-penicillamine for 1-year. She was positive for anti-desmoglein 1 IgG by ELISA. The withdrawal of D-penicillamine resulted in improvement of the skin lesions and ELISA scores for anti-demoglein 1 antibodies revealed a surprisingly rapid decline. This case is a classical incidence of drug-induced pemphigus foliaceus, in which D-penicillamine was constantly required not only to induce, but also to maintain the production of the autoantibodies.
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