What noninfectious diseases should be considered when diagnosing scarlet fever?

Updated: Jun 21, 2019
  • Author: Bahman Sotoodian, MD; Chief Editor: William D James, MD  more...
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Noninfectious diseases that should be considered include Kawasaki disease, acute lupus erythematosus, morbilliform drug eruption, and juvenile rheumatoid arthritis.

Other problems to be considered include the following:

  • Arcanobacterium haemolyticum

  • Atropine toxicity

  • Enteroviral infection and nonspecific viral infection

  • Fifth disease

  • Epstein-Barr virus (infectious mononucleosis)

  • HIV infection

  • Juvenile rheumatoid arthritis

  • Pediatric cellulitis

  • Plant allergic reactions

  • Roseola

  • S moniliformis infection (rat bite fever)

  • Severe sunburn

  • Viral exanthema

  • Guttate psoriasis: Streptococcal infection is known to precipitate guttate psoriasis and may also cause scarlet fever. The 2 are easily distinguished, as the flexural erythema with sandpaperlike texture and petechiae of scarlet fever are very different from the disseminated, round, erythematous lesions with silver scale of guttate psoriasis.

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