Difference between revisions of "Botryomycosis"

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*Filamentous bacteria can also cause granulomas
 
*Filamentous bacteria can also cause granulomas
 
**''E.g.'' [[:Category:Actinomycetes|''Actinomyces'' and ''Nocardia'']], [[:Category:Actinobacillus species|''Actinobacillus'']]
 
**''E.g.'' [[:Category:Actinomycetes|''Actinomyces'' and ''Nocardia'']], [[:Category:Actinobacillus species|''Actinobacillus'']]
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[[Category:Integumentary System - Bacterial Infections]]

Revision as of 19:08, 21 February 2011

  • Caused by Staphylococcus aureus
  • Occurs in horses and pigs usually due to wounds
  • Lowgrade persistent infection -> granulomatous lesions
  • Grossly:
    • Hard nodules with fibrous capsule in muscles
    • Contain yellow-brown pus and granules
  • Histologically:
    • Encapsulated granulomatous lesions
    • Central club colonies
    • Staphylococci are present


    • Granulomatous dermatitis caused by nonfilamentous bacteria
    • Usually Staphylococcus aureus
    • Small, yellow granules are formed - sulfur granules
      • Central bacteria surrounded by homogeneous eosinophilic material
  • Filamentous bacteria can also cause granulomas