Nummular dermatitis on guselkumab for palmoplantar psoriasis

Allison Truong, Stephanie Le, Maija Ht Kiuru, Emanual Michael Maverakis

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


A 40-year-old man with chronic history of refractory palmoplantar psoriasis presented with new onset of well-demarcated oval erythematous asteatotic plaques on bilateral shins after starting guselkumab therapy. Histopathology revealed chronic spongiotic dermatitis consistent with a diagnosis of nummular dermatitis. This case highlights a previously unreported adverse event to guselkumab therapy.

Original languageEnglish (US)
Article numbere12954
JournalDermatologic Therapy
StatePublished - Jan 1 2019


  • dermatitis
  • guselkumab
  • IL23
  • nummular
  • palmoplantar
  • psoriasis
  • psoriasis
  • Th17

ASJC Scopus subject areas

  • Dermatology


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