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Skin Environmental - Pathology (view source)
Revision as of 20:57, 13 August 2009
, 20:57, 13 August 2009no edit summary
*Grossly:
*Grossly:
**Red and swollen extremities
**Red and swollen extremities
**[[General Pathology - Necrosis#Dry Gangrene|Dry gangrene]] may develop on pinnae and tail
**[[Necrosis - Pathology#Dry Gangrene|Dry gangrene]] may develop on pinnae and tail
===Fescue poisoning===
===Fescue poisoning===
*Caused by excessive consumption of ''Festuca arudinacea''
*Caused by excessive consumption of ''Festuca arudinacea''
*Clinical signs develop about two weeks after consumption
*Clinical signs develop about two weeks after consumption
*Grossly:
*Grossly:
**[[General Pathology - Necrosis#Dry Gangrene|Dry gangrene]] of extremities
**[[Necrosis - Pathology#Dry Gangrene|Dry gangrene]] of extremities
**Similar to [[Skin Environmental - Pathology#Ergot poisoning|ergot poisoning]]
**Similar to [[Skin Environmental - Pathology#Ergot poisoning|ergot poisoning]]
===Selenium poisoning===
===Selenium poisoning===
*Lesions may occur in wet or hypoglycaemic neonates or animals recently moved from warm to cold environment
*Lesions may occur in wet or hypoglycaemic neonates or animals recently moved from warm to cold environment
*Areas affected are extremities
*Areas affected are extremities
*Lesions consist of [[General Pathology - Necrosis#Gangrene|gangrene]] and necrotic tissue
*Lesions consist of [[Necrosis - Pathology#Gangrene|gangrene]] and necrotic tissue
===High temperature damage===
===High temperature damage===
***Vesicles
***Vesicles
**Microscopically:
**Microscopically:
***[[General Pathology - Necrosis#Coagulation Necrosis|Coagulation necrosis]] of epidermis
***[[Necrosis - Pathology#Coagulation Necrosis|Coagulation necrosis]] of epidermis
***Subepidermal vesiculation
***Subepidermal vesiculation
***Necrosis of adnexa
***Necrosis of adnexa