Changes

Dermatophilosis (view source)

Revision as of 17:35, 25 July 2010

499 bytes removed , 17:35, 25 July 2010

no edit summary

Line 9: Line 9:

==Description==

−

A group of diseases affecting the epidermis caused by [[Dermatophilus congolensis|dermatophilus congolensis]] . Causes a range of conditions in large animals including rain scald in horses and strawberry foot rot in sheep. Lesions typically involve exudative dermatitis with scab formation. A zoonosis affecting humans in close contact with infected animals.

+

A group of diseases affecting the epidermis caused by [[Dermatophilus congolensis|dermatophilus congolensis]] . Causes a range of conditions in large animals including rain scald in horses and strawberry foot rot in sheep. Associated with skin trauma, prolonged wetting or [[Parasitic skin infections - Pathology#Parasitic| parasites]]. Lesions typically involve exudative dermatitis with scab formation. A zoonosis affecting humans in close contact with infected animals.

==Signalment==

Line 78: Line 78: −

*Associated with skin trauma, prolonged wetting or [[Parasitic skin infections - Pathology#Parasitic| parasites]]

+

−

** -> penetration of zoospores

+

−

*Bacteria proliferate in outer sheath of hair follicles and superficial epidermis

−

*Gram-positive, filamentous branching organisms, subdivided longitudinally and transversly

−

*Causing:

−

**Acute inflammatory response -> neutrophil migration through dermis and epidermis -> formation of microabscesses

−

**Further penetration of bacteria is thus prevented

−

**Regenerated epidermis is invaded again by remaining organisms

−

**Repeated reinfection -> multilaminated pustular crusts

[[Category:Cattle]][[Category:Sheep]][[Category:Horse]][[Category:To_Do_-_Caz]]

[[Category:Sheep]][[Category:Pig]][[Category:Cattle]][[Category:Goat]][[Category:Zoonoses]][[Category:Dog]][[Category:Cat]]

Crank

1,573

edits