Difference between revisions of "Feline Scabies"
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| Line 9: | Line 9: | ||
==Pathogenesis== | ==Pathogenesis== | ||
| − | Infection begins on the ear tips and spreads over the body | + | Infection begins on the ear tips and spreads over the body, a notoedric skin infestation. |
*Causes dermatitis | *Causes dermatitis | ||
Revision as of 14:59, 22 February 2011
- Rare but very contagious
- Caused by Notoedres cati
- Grossly:
- Erythematous papular rash -> scales, crusts, alopecia -> lichenification when chronic
- Start on neck and ears -> head, face, paws -> generalised
- Microscopically:
- Epidermal hyperplasia, spongiosis, crusts
- Superficial perivascular dermatitis
Pathogenesis
Infection begins on the ear tips and spreads over the body, a notoedric skin infestation.
- Causes dermatitis
- Burrowing of females damages keratinocytes leading to cytokine release
- Hypersensitivity reaction may occur
- Eosinophils