Difference between revisions of "Bovine Papular Stomatitis"
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| − | + | Papular proliferative pathology | |
| − | + | [[Image:BPS.gif|right|thumb|125px|<small><center>Ring Zone Lesions of BPS - Calf (Courtesy of Alun Williams (RVC))</center></small>]] | |
| − | [[Image:BPS.gif|thumb| | + | [[Image:BPSOES.gif|right|thumb|125px|<small><center>Oesophageal lesions of BPS (Courtesy of Alun Williams (RVC))</center></small>]] |
| − | [[Image:BPSOES.gif|thumb| | ||
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| − | + | *Parapox virus | |
| − | + | *Very similar disease to orf but seen in cattle and generally milder condition. | |
| − | The early lesions are round areas of intense congestion up to 1.5 cm in diameter | + | *'''Must be differentiated from [[Foot and Mouth Disease]] and [[BVD|Mucosal Disease.]]''' |
| − | + | *Sporadic, in cattle, less than 1 year old. | |
| − | + | *Develop papules on the muzzle, external nares and in the [[Oral Cavity Overview - Anatomy & Physiology|oral cavity]]; the [[Oesophagus - Anatomy & Physiology|oesophagus]] and [[Ruminant Stomach - Anatomy & Physiology|forestomachs]] may also be affected. | |
| − | == | + | *Usually heals spontaneously. |
| − | + | =====Pathogenesis===== | |
| − | + | *The early lesions are round areas of intense congestion up to 1.5 cm in diameter. | |
| − | + | *The centre becomes necrotic and slightly depressed. | |
| − | + | *Slow peripheral extension of this lesion gives a classical ring zone formation with concentric rings of | |
| − | == | + | **yellow (necrosis), |
| − | + | **grey (epithelial hyperplasia) | |
| − | + | **red (congestion). | |
| − | + | =====Histology===== | |
| − | + | *There are focal areas of hydropic degeneration in the stratum spinosum | |
| − | == | + | *Large eosinophilic intracytoplasmic inclusion |
| − | + | *Epidermis is markedly thickened. | |
| − | + | *The superficial layers of the epithelium become necrotic and slough. | |
| − | + | *''Vesicle formation is not a feature of this disease.'' | |
| − | + | [[Category:Poxviridae]][[Category:Oral_Cavity_-_Proliferative_Pathology]][[Category:Cattle]] | |
| − | + | [[Category:Oesophagus_-_Pathology]][[Category:To_Do_-_Clinical/Viruses]] | |
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| − | [[Category:Poxviridae]] [[Category:Oral_Cavity_-_Proliferative_Pathology]] [[Category: | ||
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Revision as of 13:27, 6 September 2010
Papular proliferative pathology
- Parapox virus
- Very similar disease to orf but seen in cattle and generally milder condition.
- Must be differentiated from Foot and Mouth Disease and Mucosal Disease.
- Sporadic, in cattle, less than 1 year old.
- Develop papules on the muzzle, external nares and in the oral cavity; the oesophagus and forestomachs may also be affected.
- Usually heals spontaneously.
Pathogenesis
- The early lesions are round areas of intense congestion up to 1.5 cm in diameter.
- The centre becomes necrotic and slightly depressed.
- Slow peripheral extension of this lesion gives a classical ring zone formation with concentric rings of
- yellow (necrosis),
- grey (epithelial hyperplasia)
- red (congestion).
Histology
- There are focal areas of hydropic degeneration in the stratum spinosum
- Large eosinophilic intracytoplasmic inclusion
- Epidermis is markedly thickened.
- The superficial layers of the epithelium become necrotic and slough.
- Vesicle formation is not a feature of this disease.