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Normocomplementemic Urticarial Vasculitis Associated with A/H1N1 in a Child. Case Report.

Şule Gökçe1, Burçe Emine Dörtkardeşler1, Aslı Aslan2

  • 1Ege University Faculty of Medicine, Department of Pediatrics, General Pediatrics Unit, Ege University Childrens' Hospital, Bornova, 35040 Izmir, Turkey.

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Summary

Urticarial vasculitis, a painful rash condition, can be triggered by influenza A/H1N1 infection. This case report suggests that such skin lesions may be a manifestation of seasonal flu.

Keywords:
ChildInfluenza infectionUrticarial vasculitisVasculitis

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Area of Science:

  • Dermatology
  • Infectious Diseases
  • Pediatrics

Background:

  • Urticarial vasculitis presents with painful, itchy rashes, angioedema, and purpura.
  • Influenza viruses are significant respiratory pathogens causing widespread illness and mortality.
  • Cutaneous manifestations of influenza are not extensively documented.

Purpose of the Study:

  • To report a case of urticarial vasculitis associated with influenza A/H1N1 infection in a child.
  • To highlight potential new cutaneous manifestations of seasonal flu.

Main Methods:

  • Case report of a 4.5-year-old girl.
  • Clinical presentation: fever and painful urticarial skin lesions.
  • Diagnostic confirmation: positive nasal swab for influenza A/H1N1.

Main Results:

  • The patient presented with fever and painful urticarial skin lesions.
  • Influenza A/H1N1 virus was identified as the causative agent.
  • The diagnosis of urticarial vasculitis associated with influenza A/H1N1 was established.

Conclusions:

  • Urticarial vasculitic lesions can be considered a potential cutaneous manifestation of seasonal influenza.
  • This finding expands the spectrum of known dermatological presentations during flu season.