A Blistering Response: Concurrent Psoriasis and Pemphigus Foliaceus

Published:September 17, 2014DOI:
      A 62-year-old woman's dermatologic difficulties were compounded when light treatment for psoriasis spurred pemphigus foliaceus; an occurrence very rarely noted in the medical literature. She presented with an erythematous, crusted eruption involving her entire head and neck and most of her trunk. The lesions developed several months after consecutive exposures to narrowband ultraviolet B (UVB) phototherapy for chronic plaque psoriasis (Figure 1).
      Figure thumbnail gr1
      Figure 1Diffuse crusted erosions, evidence of pemphigus foliaceus, developed on the patient's back months after narrowband ultraviolet B phototherapy.
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