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

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.