Related Experiment Video
Updated: Jul 31, 2026

12:23
Granulocyte-dependent Autoantibody-induced Skin Blistering
Published on: October 12, 2012
[Solar urticaria]
1Universitäts-Hautklinik Göttingen, Goettingen. Schauder@med.uni-goettingen.de
Summary
Solar urticaria, a rare photodermatosis, highlights the importance of photodiagnostic approaches. Specialized centers can effectively help patients with prophylactic and therapeutic interventions for light-induced skin conditions.
Area of Science:
- Dermatology
- Photobiology
Context:
- Solar urticaria as a model for rare photodermatoses.
- The need for specialized knowledge and equipment in photodermatology.
- Challenges in diagnosing and managing light-induced skin conditions.
Purpose:
- Illustrate the photodiagnostic approach in rare photodermatoses.
- Demonstrate effective patient management through prophylactic and therapeutic interventions.
- Provide a resource for locating specialized photodiagnostic units.
Summary:
- Solar urticaria exemplifies the diagnostic and therapeutic strategies for rare photodermatoses.
- Effective management requires advanced photodermatology expertise and specialized equipment.
- A directory of photodiagnostic units in Germany, Austria, and Switzerland is provided.
Impact:
- Improved understanding and management of solar urticaria and similar conditions.
- Enhanced patient care through specialized diagnostic and treatment protocols.
- Facilitation of access to expert centers for patients with photodermatoses.
Related Concept Videos
Allergic Reactions
Overview
Skin Cancer
Skin cancer is a type of cancer that occurs when there is an abnormal growth of skin cells, usually triggered by damage to the DNA within the skin cells. It is primarily caused by exposure to ultraviolet (UV) radiation from the sun or artificial sources like tanning beds. Skin cancer is the most common type of cancer worldwide, and its incidence continues to rise.
Basal Cell Carcinoma (BCC): BCC is the most common type of skin cancer, accounting for about 80% of cases. It typically develops in...
Basal Cell Carcinoma (BCC): BCC is the most common type of skin cancer, accounting for about 80% of cases. It typically develops in...
Allergic Drug Reactions
Allergic reactions related to drugs are hypersensitivity responses driven by the immune system and bear no connection to the drug's therapeutic action. While drugs in isolation do not trigger an immune response, they can interact with endogenous proteins to form antigens. These antigens stimulate lymphocytes to produce antibodies. IgE-type antibodies attach themselves to mast cells. Upon subsequent exposure to the same stimulus, the antigen-antibody interaction is initiated, unleashing numerous...
Allergic Reactions: Anaphylaxis
Anaphylaxis is a severe, life-threatening hypersensitivity reaction mediated by Immunoglobulin E (IgE) antibodies. When IgE binds to allergens, it triggers the release of mediators– histamine, leukotrienes, and prostaglandins from mast cells and basophils. These mediators cause vasodilation, edema, and inflammation, leading to various symptoms.The primary allergens causing anaphylaxis include food items (e.g., peanuts, shellfish), drugs (e.g., penicillin, asparaginase, corticotropin, heparin),...
Hypersensitivity Reactions: Cytolytic Reactions
Type II hypersensitivity involves IgG and IgM antibodies targeting cell surface antigens, leading to cell destruction. This can occur through complement activation, antibody-dependent cell-mediated cytotoxicity (ADCC), or acting as opsonins for phagocytosis. When excessive, these reactions cause significant tissue damage.Drug-induced hemolytic anemia is a common example, where drugs like penicillin or cephalosporins bind to red blood cells, forming drug-protein complexes. These complexes...
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...

