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Insect and arachnid hypersensitivity
1Colorado State University College of Veterinary Medicine, Veterinary Teaching Hospital, Fort Collins, USA.
The Veterinary Clinics of North America. Small Animal Practice
|November 24, 1999
Summary
Insect hypersensitivity reactions present with various clinical signs, often involving itchy skin. Diagnosis and treatment focus on insect control, allergy testing, and supportive care, with immunotherapy potentially reducing reaction severity.
Area of Science:
- Veterinary Dermatology
- Allergy and Immunology
Background:
- Insect hypersensitivity reactions exhibit diverse clinical manifestations.
- Reactions commonly present as pruritic lesions on sparsely haired skin areas.
- Histopathology often reveals perivascular eosinophilic infiltration.
Purpose of the Study:
- To outline the clinical presentations of insect hypersensitivity.
- To discuss diagnostic approaches for insect allergies.
- To review treatment strategies for insect-induced reactions.
Main Methods:
- Diagnosis relies on clinical signs, response to insect control, and provocative testing.
- Allergen-specific IgE testing (intradermal, prick, serum) confirms reaginic antibodies.
- Evaluation of clinical presentations and treatment efficacy.
Main Results:
- Pruritic, sparsely haired areas are characteristic.
- Eosinophilic infiltration is a common histopathological finding.
- Successful diagnosis and management depend on insect control and symptomatic support.
Conclusions:
- Insect hypersensitivity requires a multi-faceted approach including diagnosis and management.
- Aggressive insect control and symptomatic treatment are crucial.
- Immunotherapy may be beneficial in managing severe reactions.