Difference between revisions of "Culicoides Hypersensitivity"
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[[Category:Allergic Skin Diseases]][[Category:Dermatological Disorders - Horse]][[Category:To Do - Clinical]] | [[Category:Allergic Skin Diseases]][[Category:Dermatological Disorders - Horse]][[Category:To Do - Clinical]] | ||
+ | [[Category:To Do - Blood]] |
Revision as of 13:59, 11 August 2010
Also known as Sweet Itch
- Usually involves Type I reaction and Type IV reaction due to salivary antigens of Culicoides sp.
- May be seasonally recurring or continuous depending on climate
- Grossly:
- Papules, crusts, alopecia, excoriations, lichenification
- Microscopically:
- Superficial and dep perivascular dermatitis
- Many eosinophils
- Epidermal hyperplasia
- Hyperkeratosis
- Dermal fibrosis
- Possibly eosinophilic folliculitis, intraepidermal pustules and eosinophilic granulomas