Changes

'''Lumpy jaw''' is a chronic infectious condition which affects cattle. It is caused by the anaerobic filamentous bacteria [[Actinomyces bovis|''Actinomyces bovis'']]  

'''Lumpy jaw''' is a chronic infectious condition which affects cattle. It is caused by the anaerobic filamentous bacteria [[Actinomyces bovis|''Actinomyces bovis'']]  

Actinomyces is a normal commensal of the oral cavity and upper respiratory tract of cattle, it gains entry to underlying soft tissue when the mucosa is damaged by trauma or eruption of teeth.

Actinomyces is a normal commensal of the oral cavity, upper respiratory tract and digestive tract of cattle, it gains entry to underlying soft tissue when the mucosa is damaged by trauma or eruption of teeth.

Lesions are charcterised by gross swelling, abscesses and draining fistulae overlying granulation of the madible and maxila. In some cases the [[Oesophagus - Anatomy & Physiology|oesophagus]] and [[Oesophageal groove|oesophageal groove]] may become involoved but the lymph nodes not affected.     

Lesions are charcterised by gross swelling, abscesses and draining fistulae overlying granulation of the madible and maxila. In some cases the [[Oesophagus - Anatomy & Physiology|oesophagus]] and [[Oesophageal groove|oesophageal groove]] may become involoved but the lymph nodes not affected.     

*Facial distortment

*Facial distortment

*Granuloma formation overlying the mandible and maxila

*Granuloma formation overlying the mandible and maxila

*Fistulae draining small amounts of thick pus

*Fistulae draining small amounts of thick pus with yellow granules

*Difficulties with mastication

*Difficulties with mastication

*Loose teeth  

*Loose teeth