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JAMA Dermatology Clinicopathological Challenge
September 2017

Annular Flaccid Pustules on the Trunk

Author Affiliations
  • 1Department of Dermatology, Medical Center, Faculty of Medicine, University of Freiburg, Germany
  • 2Department of Dermatology and Allergology, Philipps University Marburg, Germany
  • 3Royal Melbourne Hospital, Parkville and Box Hill Hospital–Monash University Eastern Health Clinical School, Box Hill, Victoria, Australia
JAMA Dermatol. 2017;153(9):921-922. doi:10.1001/jamadermatol.2017.0901

A woman in her 50s presented for evaluation of itching skin lesions. The lesions had been present for months and increased gradually. Mucosae were unaffected. Treatment with topical steroids showed no lasting effect. Skin examination revealed multiple flaccid pustules on scaly, erythematous plaques on her trunk, with an annular and circinate pattern (Figure, A and B).

B. IgA pemphigus

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