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Erythroderma with islands of sparing

BMJ 2024; 385 doi: (Published 20 June 2024) Cite this as: BMJ 2024;385:e078122
  1. Ming-Che Chiang, chief resident,
  2. Ying-Yi Chiang, dermatologist
  1. Department of Dermatology, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
  1. Correspondence to: Y-Y Chiang ellychiang{at}

This man in his 70s presented with a two month history of pruritic plaques on his upper body (fig 1). Although psoriasis was initially diagnosed, symptoms did not improve with phototherapy or methotrexate and acitretin. His condition progressed to …

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