Related Experiment Video
Updated: May 10, 2026
08:02
A Mouse Ear Model for Allergic Contact Dermatitis Evaluation
Published on: March 24, 2023
[Contact Paederus dermatitis in a 12 years old boy]
Betina Pagotto1, Romina Plafnik, Andrea Castillo
1Sección Dermatología Pediátrica, Hospital Ramos Mejía. betina.pagotto@gmail.com
Archivos Argentinos De Pediatria
|June 5, 2013
Summary
Paederus dermatitis is a skin condition caused by insect hemolymph. This case report details its typical clinical signs and epidemiological context for better diagnosis.
Area of Science:
- Dermatology
- Toxicology
- Entomology
Background:
- Paederus dermatitis is a specific contact dermatitis.
- It results from contact with pederine, a toxin found in the hemolymph of Paederus genus insects.
Observation:
- The condition presents as a sudden onset of vesico-pustulous eruption on an erythematous background.
- Lesions typically appear on exposed body areas, often associated with outdoor activities.
Findings:
- Diagnosis relies on characteristic clinical manifestations and epidemiological data.
- This study aims to present a case and analyze the clinical and epidemiological features of Paederus dermatitis.
Implications:
- Understanding these features aids in accurate diagnosis and management of Paederus dermatitis.
- This case report contributes to the literature on insect-induced contact dermatitis.
Related Concept Videos
01:27Acne Infection
Acne is a multifactorial skin condition primarily affecting adolescents and young adults, with a global prevalence estimated to exceed 75% in this demographic. The condition is characterized by the formation of comedones (blackheads and whiteheads), papules, pustules, nodules, and, in severe cases, cysts, particularly in areas rich in sebaceous glands such as the face, neck, chest, and back. The pathogenesis involves increased sebum production, follicular hyperkeratinization, colonization by...
01:23Skin Diseases and Disorders
Skin is the first line of defense and encounters a variety of microbes. Some pathogenic strains are often the cause of a broad range of infections of the skin and other body systems. These conditions can affect people of all ages and may have different causes, including genetic factors, infections, autoimmune reactions, environmental factors, and lifestyle choices.
Gram-positive Staphylococcus spp. and Streptococcus spp. are responsible for many of the most common skin infections. However, many...
Gram-positive Staphylococcus spp. and Streptococcus spp. are responsible for many of the most common skin infections. However, many...
01:29Staphylococcal Skin Infections
Staphylococcus aureus is a Gram-positive coccus that resides harmlessly on the skin and mucous membranes of healthy individuals. When the skin barrier is breached, it can shift from a commensal to an opportunistic pathogen. This transition is facilitated by surface adhesins, such as clumping factor B and S. aureus surface protein G (SasG), which bind to structural proteins, including loricrin and cytokeratin, in the damaged epidermis. Protein A, another key factor, binds the Fc region of...
01:30Skin 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...
01:30Drug Toxicity: Allergic Reactions
Drug-related allergies are immune-mediated responses triggered by the administration of pharmacological agents. These hypersensitivity reactions are classified based on the immune mechanisms involved. The four primary types—Type I, II, III, and IV—are mediated by different immunological pathways and exhibit distinct clinical manifestations.Type I Hypersensitivity/ IgE-Mediated Reactions: Immunoglobulin E (IgE) immediately mediates Type I hypersensitivity reactions. Upon initial exposure to a...