Difference between revisions of "Bovine Papular Stomatitis"

From WikiVet English
Jump to navigation Jump to search
m (Text replace - "[[Stomach and Abomasum - Anatomy & Physiology|" to "[[Ruminant Stomach - Anatomy & Physiology|")
Line 7: Line 7:
 
*'''Must be differentiated from [[Foot and Mouth Disease]] and [[BVD|Mucosal Disease.]]'''
 
*'''Must be differentiated from [[Foot and Mouth Disease]] and [[BVD|Mucosal Disease.]]'''
 
*Sporadic, in cattle, less than 1 year old.  
 
*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 [[Stomach and Abomasum - Anatomy & Physiology|forestomachs]] may also be affected.   
+
*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.
 
*Usually heals spontaneously.
 
=====Pathogenesis=====
 
=====Pathogenesis=====

Revision as of 13:27, 6 September 2010

Papular proliferative pathology

Ring Zone Lesions of BPS - Calf (Courtesy of Alun Williams (RVC))
Oesophageal lesions of BPS (Courtesy of Alun Williams (RVC))
  • 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.