|
|
| (5 intermediate revisions by 2 users not shown) |
| Line 1: |
Line 1: |
| − | {{OpenPagesTop}}
| + | *Rare but very contagious |
| − | == Introduction == | + | *Caused by [[Notoedres|''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== |
| | | | |
| − | Feline scabies is a rare but very contagious disease caused by [[Notoedres|''Notoedres cati'']], a burrowing mite. It has not been reported in the UK as of yet. Canine scabies mite, ''[[Sarcoptes]] scabiei'' var. ''canis'' infection can occur in the cat, but is rare and thought to occur mainly when the animal is immunosuppressed. Cases should be screened for [[FeLV]] and [[FIV]] infection and other serious internal disease if this mite is found on them. Affected animals develop [[Sarcoptic Mange#Clinical Signs|similar signs to those in the dog]] i.e. crusting and scale associated with local alopecia, but may not be significantly pruritic.
| + | Infection begins on the ear tips and spreads over the body [[Parasitic skin infections - Pathology#Notoedric mites|a notoedric skin infestation]] |
| | | | |
| − | The burrowing of female mites meads to damage of keratinocytes and leads to cytokine release.
| + | *Causes dermatitis |
| | | | |
| − | == Clinical Signs ==
| + | *Burrowing of females damages keratinocytes leading to cytokine release |
| | | | |
| − | There will be variable pruritus, ranging from intense to mild. There will be crusting, scales and an erythematous papular rash, especially over the neck, ears and head. This may then spread to the paws and the abdomen. There will be alopecia and lichenification if chronic infection is present.
| + | *Hypersensitivity reaction may occur |
| | + | **Eosinophils |
| | | | |
| − | == Diagnosis ==
| |
| | | | |
| − | Clinical signs and history, plus knowledge of concurrent severe infection to cause immunosuppression. Knowledge of dogs in the household or area with scabies may also be indicative.
| + | [[Category:Integumentary System - Mite Infections]][[Category:To_Do_-_Clinical]] |
| − | | |
| − | Deep skin scrapings and hair plucks may lead to microscopic evidence of the mite. High powered microscopy will reveal epidermal hyperplasia, spongiosis, crusts, superficial perivascular dermatitis and the presence of [[eosinophils]].
| |
| − | | |
| − | == Treatment and Control ==
| |
| − | | |
| − | An [[Ectoparasiticides|acaricide]] should be used to treat this infection.
| |
| − | | |
| − | Both infected and in-contact animals should be treated, older products have to be given in repeat treatments. Avermectins and selamectins are available. No treatment is licensed for this disease in the UK, so care needs to be taken when using drugs off label.
| |
| − | | |
| − | All bedding and materials that have come into contact with the animal, e.g. the car, must be thoroughly cleaned and disinfected.
| |
| − | | |
| − | == References==
| |
| − | | |
| − | Foster, A, and Foll, C. (2003) '''BSAVA small animal dermatology '''(second edition) ''British Small Animal Veterinary Association''
| |
| − | | |
| − | Fox, M and Jacobs, D. (2007) '''Parasitology Study Guide Part 1: Ectoparasites''''' Royal Veterinary College ''
| |
| − | | |
| − | Hendrick, A (2009) '''Dermatology Study Guide, ''Royal Veterinary College''
| |
| − | | |
| − | | |
| − | {{review}}
| |
| − | | |
| − | {{OpenPages}}
| |
| − | | |
| − | [[Category:Integumentary_System_-_Mite_Infections]]
| |
| − | [[Category:Dermatological Diseases - Cat]] [[Category:Expert_Review - Small Animal]] | |