BCG-induced lichen scrofulosorum.

A. L. João, T. Pessoa e Costa, J. Farela Neves, A. João, A. Lencastre

Research output: Contribution to journalArticlepeer-review


We report the case of a 2 month old boy who developed lichen scrofulosorum one month after Bacillus Calmette-Guérin inoculation. Existence of extracutaneous tuberculosis was excluded. A possible dysfunction of the interleukin-12 / interferon-gamma axis was suggested by cellular assays, although further genetic testing was negative. Vaccine-related adverse events are infrequent but they may reveal an underlying immune disorder, highlighting a need for proper investigation, referral and follow-up.

Original languageEnglish
Pages (from-to)6-10
Number of pages5
JournalEuropean Journal of Pediatric Dermatology
Issue number1
Publication statusPublished - 1 Jan 2019


  • Adverse reaction
  • BCG
  • Lichen scrofulosorum


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