Difference between revisions of "Actinomyces bovis"
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(Created page with '***Found naturally in oral cavity of cattle ***Prefers anaerobic conditions but not strict anaerobe ***Entry of organism into tissues following trauma to the mucosa from rough fe…') |
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***Prefers anaerobic conditions but not strict anaerobe | ***Prefers anaerobic conditions but not strict anaerobe | ||
***Entry of organism into tissues following trauma to the mucosa from rough feed or tooth eruption | ***Entry of organism into tissues following trauma to the mucosa from rough feed or tooth eruption | ||
| − | ***Causes [[Chronic Inflammation - Pathology#Granulomatous Inflammation|granulomatous inflammation]] of soft tissues and bone, causing [[ | + | ***Causes [[Chronic Inflammation - Pathology#Granulomatous Inflammation|granulomatous inflammation]] of soft tissues and bone, causing [[Mandibular Osteomyelitis|lumpy jaw]] |
***Usually invades mandible to cause [[Bones Inflammatory - Pathology#Osteomyelitis|osteomyelitis]] and may extend to surrounding [[Muscles Inflammatory - Pathology#Actinomycosis bovis|muscles]] | ***Usually invades mandible to cause [[Bones Inflammatory - Pathology#Osteomyelitis|osteomyelitis]] and may extend to surrounding [[Muscles Inflammatory - Pathology#Actinomycosis bovis|muscles]] | ||
***The lesions begins as a painless swelling of the affected bone | ***The lesions begins as a painless swelling of the affected bone | ||
Revision as of 11:14, 26 May 2010
- Found naturally in oral cavity of cattle
- Prefers anaerobic conditions but not strict anaerobe
- Entry of organism into tissues following trauma to the mucosa from rough feed or tooth eruption
- Causes granulomatous inflammation of soft tissues and bone, causing lumpy jaw
- Usually invades mandible to cause osteomyelitis and may extend to surrounding muscles
- The lesions begins as a painless swelling of the affected bone
- Swelling becomes more painful and enlarges over a number of weeks, gaining fistulous tracts which discharge pus
- Organisms found in yellow sulphur granules
- Club colony formation
- Colonies adhere to agar media and are non-haemolytic
- Surgical treatment possible when lesions are small
- Prolonged parenteral penicillin treatment may be beneficial early in the disease