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Related Experiment Videos

Persistent urticarial eruption in an asthmatic patient

R Mukkamala1, N Baban, G Krishnaswamy

  • 1Department of Internal Medicine, East Tennessee State University, Johnson City, USA.

Annals of Allergy, Asthma & Immunology : Official Publication of the American College of Allergy, Asthma, & Immunology
|November 1, 1996
PubMed
Summary

Urticarial vasculitis is a condition where hives last over 24 hours, potentially indicating underlying systemic illness. Early recognition via skin biopsy is crucial for proper diagnosis and management of this inflammatory condition.

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Area of Science:

  • Dermatology
  • Immunology
  • Pathology

Background:

  • Chronic urticarial eruptions can sometimes indicate a more serious underlying condition.
  • Distinguishing urticarial vasculitis from chronic urticaria is essential for appropriate patient care.

Observation:

  • Urticarial vasculitis presents with painful lesions lasting >24 hours, often leaving pigmentation.
  • Lesions may progress to palpable purpura, and systemic illness resembling lupus erythematosus can be present.

Findings:

  • Diagnosis is confirmed by skin biopsy showing leukocytoclastic vasculitis of postcapillary venules.
  • Hypocomplementemic urticarial vasculitis involves immunoglobulin/complement deposition and classical complement pathway activation with low C1q.
  • Associated findings include anti-C1q precipitins and potential systemic vasculitis.

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Implications:

  • Recognizing urticarial vasculitis prompts further investigation for systemic disease.
  • Timely diagnosis via biopsy and serological studies guides effective treatment strategies.
  • Management involves a range of agents from NSAIDs to immunosuppressants, tailored to disease severity.