Difference between revisions of "Telangiectasis"

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*common in cattle - ''''plum pudding'''' [[Liver - Anatomy & Physiology|liver]]
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{{unfinished}}
*seen in older cats
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*can occur in any species
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*irregular, dark red, depressed areas varying in size from 1mm to 2-3cm
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Telangiectasis is a condition of the liver affecting cattle, sheep poultry and horses. The lesions are characterised by focal dilatation and congestion of the hepatic sinusoids.
*these are well defined foci of blood which accumulates in dilated sinusoids following degeneration and necrosis of adjacent hepatocytes
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*the lesions are inert, there being no signs of cellular degeneration or reaction
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All animals may be affected by the lesions but they are more commonly seen in older animals. There is little clinical significance to the disease but affected animals are a significant cause of direct economic loss due to carcass condemnation at slaughter.
*cause unknown
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Various aetiologies for the condition have been suggested. It has been proposed that telangiectasis is caused by ischaemic necrosis relating to a number underlying causes including pregnancy, abdominal tympany and bacterial infection with ''Fusobacterium necrophorum''. Other theories include a neoplastic or immune-mediated process.
*no clinical significance, but condemned at slaughter
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Following slaughter, animals with mildly affected livers may be passed for food following trimming but severely affected carcasses must be condemned.
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[[Category:Liver - Circulatory Disturbances]]
 
[[Category:Liver - Circulatory Disturbances]]
 
[[Category:To_Do_-_Clinical]]
 
[[Category:To_Do_-_Clinical]]

Revision as of 17:07, 29 September 2010




Telangiectasis is a condition of the liver affecting cattle, sheep poultry and horses. The lesions are characterised by focal dilatation and congestion of the hepatic sinusoids.

All animals may be affected by the lesions but they are more commonly seen in older animals. There is little clinical significance to the disease but affected animals are a significant cause of direct economic loss due to carcass condemnation at slaughter. Various aetiologies for the condition have been suggested. It has been proposed that telangiectasis is caused by ischaemic necrosis relating to a number underlying causes including pregnancy, abdominal tympany and bacterial infection with Fusobacterium necrophorum. Other theories include a neoplastic or immune-mediated process.

Following slaughter, animals with mildly affected livers may be passed for food following trimming but severely affected carcasses must be condemned.