Intended for healthcare professionals


Annular, erythematous plaques with scale

BMJ 2020; 371 doi: (Published 18 November 2020) Cite this as: BMJ 2020;371:m3974
  1. Tian Chen, resident dermatologist,
  2. Dong-Lai Ma, professor of dermatology
  1. Department of Dermatology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Dongcheng, Beijing, China
  1. Correspondence to: D-L Ma mdonglai{at}

This is annular plaque-type psoriasis on the trunk of a woman in her 20s (fig 1).

The patient had a three year history of annular, scaly and erythematous plaques …

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