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Vascular Spasm01:16

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The vascular phase, also known as vasospasm, is the initial stage of hemostasis, crucial for preventing excessive bleeding when a blood vessel is injured. After a vessel is cut, nerves in the damaged area trigger pain and other sensory impulses. Simultaneously, the smooth muscles in the vessel wall contract, resulting in a vascular spasm. This contraction reduces the vessel's diameter at the injury site, slowing or stopping blood loss through the vessel wall. Vascular spasms typically last...
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Updated: Jun 22, 2025

Experimental Autoimmune Uveitis: An Intraocular Inflammatory Mouse Model
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Urticarial Vasculitis.

Ruth X Wang1, Sabrina A Newman2

  • 1Department of Internal Medicine, University of Colorado School of Medicine, Anschutz Medical Campus, 13001 East 17th Place, Aurora, CO 80045, USA.

Immunology and Allergy Clinics of North America
|June 27, 2024
PubMed
Summary
This summary is machine-generated.

Urticarial vasculitis is a rare autoimmune skin condition causing persistent hives and inflammation of blood vessels. Treatment focuses on symptom management and addressing underlying autoimmune diseases.

Keywords:
Anti-C1qAutoinflammatoryComplementIL-1PurpuraUrticariaVasculitisWheal

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Area of Science:

  • Dermatology
  • Immunology
  • Rheumatology

Background:

  • Urticarial vasculitis is a rare autoimmune disorder.
  • Characterized by persistent skin lesions lasting over 24 hours.
  • Involves inflammation of small blood vessels, differing from common urticaria.

Purpose of the Study:

  • To summarize the key features of urticarial vasculitis.
  • To highlight diagnostic challenges and treatment approaches.
  • To differentiate urticarial vasculitis from common urticaria.

Main Methods:

  • Literature review of urticarial vasculitis.
  • Analysis of diagnostic criteria.
  • Summary of current treatment strategies.

Main Results:

  • Urticarial vasculitis presents with prolonged skin lesions and potential systemic symptoms like joint pain and fever.
  • Skin biopsy may be required for diagnosis.
  • Lesions can have a bruiselike appearance due to vascular inflammation.

Conclusions:

  • Urticarial vasculitis requires careful diagnosis, often needing a skin biopsy.
  • Treatment involves managing symptoms and addressing underlying autoimmune conditions.
  • Early recognition and management are crucial for patient outcomes.