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Related Experiment Videos

Hypocomplementemic urticarial vasculitis: report of a pediatric case.

M A Cadnapaphornchai1, F T Saulsbury, V F Norwood

  • 1Department of Pediatrics, University of Virginia Children's Medical Center, Charlottesville, USA.

Pediatric Nephrology (Berlin, Germany)
|April 25, 2000
PubMed
Summary

Hypocomplementemic urticarial vasculitis syndrome (HUVS) is rare in children. This case highlights HUVS in a pediatric patient, emphasizing its varied presentation and successful dapsone treatment for renal symptoms.

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Area of Science:

  • Pediatric Rheumatology
  • Nephrology
  • Immunology

Background:

  • Hypocomplementemic urticarial vasculitis syndrome (HUVS) is uncommon in pediatric populations.
  • Early diagnosis can be challenging due to overlapping symptoms with other pediatric rheumatic diseases.

Observation:

  • A pediatric patient presented with polyarthritis and hypocomplementemia at age 3.
  • The patient later developed an intermittent purpuric rash, episodic arthritis, hematuria, and proteinuria.
  • Renal biopsy confirmed membranoproliferative glomerulonephritis with membranous features.

Findings:

  • Serum complement evaluation indicated classical pathway activation, consistent with HUVS.
  • Oral dapsone therapy resulted in improved proteinuria.

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Implications:

  • HUVS should be considered in the differential diagnosis of pediatric patients presenting with glomerulonephritis, urticarial rash, arthritis, and pulmonary disease.
  • This case underscores the importance of comprehensive diagnostic workups for complex pediatric autoimmune conditions.