What is the role of antitumor necrosis factor-? agents in the etiology of pityriasis lichenoides?

Updated: Sep 11, 2020
  • Author: Jeffrey P Callen, MD; Chief Editor: Dirk M Elston, MD  more...
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Interestingly, with the increased usage of antitumor necrosis factor-α agents, several reports of PLC induction in patients have been published. [18, 19, 20, 21]  These events remain rare and in patients with underlying inflammatory conditions such as Crohn disease. Additionally, it is not clear if a preceding illness was found in these immunosuppressed patients.

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