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Related Concept Videos

Hypersensitivity Reactions: Immune-Complex Reactions01:19

Hypersensitivity Reactions: Immune-Complex Reactions

Type III hypersensitivity reactions occur when antigen–antibody complexes form and activate the complement system. Normally, these complexes help the clearance of antigens by phagocytes and red blood cells. However, when large numbers of immune complexes are present, they can deposit in tissues—particularly in the walls of blood vessels—leading to inflammation and tissue injury. These deposits trigger complement activation and neutrophil recruitment, resulting in serum sickness, a systemic...
Anastomoses01:19

Anastomoses

In human anatomy, anastomosis refers to a connection or opening between two things, particularly between blood vessels or other tubular structures. The term is derived from the Greek term 'anastomosis,' which means 'outlet' or 'opening.' This natural network of connections plays a critical role in the survival and functionality of the human body.
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Varicose Veins II: Diagnostic Studies and Interprofessional Care01:26

Varicose Veins II: Diagnostic Studies and Interprofessional Care

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Nephrotic Syndrome II : Assessment and Medical Management

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Portal Hypertension01:22

Portal Hypertension

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Cytotoxic Edema: Pathophysiology

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Mouse Heterotopic Cervical Cardiac Transplantation Utilizing Vascular Cuffs
08:44

Mouse Heterotopic Cervical Cardiac Transplantation Utilizing Vascular Cuffs

Published on: June 23, 2022

Hypocomplementemic urticarial vasculitis syndrome: an interdisciplinary challenge.

Wolfgang Grotz1, Hideo A Baba, Jan U Becker

  • 1St. Franziskus Hospital, Münster, Germany.

Deutsches Arzteblatt International
|December 19, 2009
PubMed
Summary
This summary is machine-generated.

Hypocomplementemic urticarial vasculitis syndrome (HUVS) is an independent immunological disease. Its main manifestation is chronic urticarial vasculitis with complement deficiency and C1q antibodies, often involving multiple organs.

Keywords:
autoimmune diseasechronic diseasehypocomplementemiaurticariavasculitis

Related Experiment Videos

Last Updated: Jun 17, 2026

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08:44

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Published on: June 23, 2022

Area of Science:

  • Immunology
  • Dermatology
  • Rheumatology

Background:

  • Chronic urticaria can indicate underlying systemic disease, especially when associated with urticarial vasculitis.
  • Hypocomplementemic urticarial vasculitis syndrome (HUVS) is recognized as a distinct immunological disorder.

Purpose of the Study:

  • To outline the key features and diagnostic considerations for Hypocomplementemic urticarial vasculitis syndrome (HUVS).
  • To emphasize the importance of including HUVS in the differential diagnosis for systemic immunological diseases.

Main Methods:

  • A selective literature review was conducted.
  • The author's clinical experience was incorporated.

Main Results:

  • The primary clinical presentation of HUVS is chronic urticarial vasculitis.
  • Key diagnostic markers include complement deficiency and the presence of C1q antibodies in serum.
  • Skin biopsy typically shows leukocytoclastic vasculitis, confirming the systemic nature of the disease.

Conclusions:

  • HUVS involves multiple organ systems, sometimes with severe manifestations.
  • Accurate diagnosis through awareness and rational evaluation by various medical specialists is crucial to avoid misdiagnosis and unnecessary testing.
  • Ophthalmologists, rheumatologists, nephrologists, dermatologists, general practitioners, and pediatricians should consider HUVS in their differential diagnoses.