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]]
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[[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