Difference between revisions of "Dermatophilosis"

Revision as of 10:09, 25 June 2010

Caused by Dermatophilus congolensis
- Disease most prevalent in young animals
- Damage to the skin predisposes to infection; blood-sucking insects also thought to be involved in transmission
- Lesions after heavy rainfall predominantly affect dorsum of farm animals
- Papules, serous, exudative matting of hair, raised crusty scabs
- Scab formation more prominent in sheep and cattle than in horses
- Lesions may resolve within weeks if dry weather, or may progress
Treatment:
- Parenteral antibiotics e.g oxytetracycline, pr penicillin-streptomycin combinations

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-{{OpenPagesTop}}
+*Caused by [[Dermatophilus congolensis]]
-Also known as: '''''Cutaneous streptothrichosis'''
+**Disease most prevalent in young animals
+**Damage to the skin predisposes to infection; blood-sucking insects also thought to be involved in transmission
+**Lesions after heavy rainfall predominantly affect dorsum of farm animals
+**Papules, serous, exudative matting of hair, raised crusty scabs
+**Scab formation more prominent in sheep and cattle than in horses
+**Lesions may resolve within weeks if dry weather, or may progress
+*'''Treatment''':
+**Parenteral antibiotics e.g oxytetracycline, pr penicillin-streptomycin combinations
-==Introduction==
+[[Category:Cattle]][[Category:Sheep]][[Category:Horse]][[Category:To_Do_-_Clinical]]
-This is a group of diseases affecting the epidermis caused by  [[Dermatophilus congolensis|''Dermatophilus congolensis'']]. It causes a range of conditions in large animals including rain scald in horses and strawberry foot rot in sheep. The disease is associated with skin trauma, prolonged wetting or [[:Category:Integumentary System - Parasitic Infections| parasites]]. Lesions typically involve exudative dermatitis with scab formation. It is a zoonosis affecting humans in close contact with infected animals.
-==Signalment==
-Can be seen in animals of all ages but most commonly occurs in young animals who are chronically exposed to moisture.
-Affects horses, sheep, cattle, goats, pigs and rarely dogs and cats.
-==History and Clinical signs==
-Lesions commonly occur following heavy rainfall and commonly affects the dorsum of animals. Any previous trauma or damage to the skin can predispose to infection. Blood-sucking insects are also thought to be involved in transmission.
-<big>'''[[Dermatophilosis - Horse|Equine dermatophilosis]]
-'''[[Dermatophilosis - Sheep|Ovine dermatophilosis]]
-'''[[Dermatophilosis - Cattle|Bovine dermatophilosis]]
-</big>
-==Diagnosis==
-Diagnosis can often be made on history and physical exam. '''Impression smears''' can also be useful when stained with either gram stain or Giemsa and examined microscopically.
-Additionally it is possible to '''culture material from the crusts''' however this can be difficult due to the slow growing nature of the pathogen.
-==Pathology==
-Grossly:
-Papules, pustules, crusts may coalesce and mat the coat.
-Microscopically:
-*Hyperplastic superficial perivascular dermatitis
-*Multilaminated crusts, alternating keratin and inflammatory cell layers
-==Prognosis==
-Good if animals are kept dry. Often re-occurs in wet weather.
-{{Learning
-|literature search = [http://www.cabdirect.org/search.html?rowId=2&options2=OR&q2=dermatophilosis&occuring2=title&rowId=3&options3=AND&q3=&occuring3=freetext&publishedstart=2000&publishedend=yyyy&calendarInput=yyyy-mm-dd&la=any&it=any&show=all&x=39&y=14 Dermatophilosis publications since 2000]
-}}
-==References==
-Merck & Co (2008) '''The Merck Veterinary Manual''' (Eighth Edition) ''Merial''
-th year Veterinary Dermatology notes. Royal Veterinary college. October-November 2008. p60-64.
-{{review}}
-{{OpenPages}}
-[[Category:Dermatological Diseases - Pig]][[Category:Dermatological Diseases - Goat]][[Category:Zoonoses]][[Category:Dermatological Diseases - Dog]][[Category:Dermatological Diseases - Cat]]
-[[Category:Expert Review]]
-[[Category:Integumentary System - Bacterial Infections]]

Difference between revisions of "Dermatophilosis"

Revision as of 10:09, 25 June 2010

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