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| | [[Osteitis]] | | [[Osteitis]] |
| − | ===Bone infections in general===
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| − | *'''Caused by''':
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| − | **Bacteria most commonly (e.g. [[Mandibular Osteomyelitis|lumpy jaw]] in cattle due to ''[[Actinomyces bovis]]'')
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| − | **Viruses, fungi and protozoa less commonly
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| − | *'''Routes of infection''':
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| − | **“Inoculated” at time of [[Bones Fractures - Pathology|fracture]]
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| − | **Extension from other infected sites ([[Sinusitis|sinuses]], middle ear, [[Joints Inflammatory - Pathology|joints]])
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| − | **Haematogenous (young farm animals)
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| − | *'''Gross lesions'''
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| − | **Suppurative exudate (in bacterial infection), necrosis, bone proliferation, pathological fractures
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| − | **Dead bone portions may be separated from blood supply and form bone sequestra
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| − | *'''Consequences'''
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| − | **Extension to adjacent bone
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| − | **Haematogenous spread to other bones and soft tissue
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| − | **Pathologic fractures
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| − | **Sinus tracts to exterior
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| − | *'''Osteitis''' = inflammation of bone
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| − | *'''Periostitis''' = inflammation of periosteum, usually develops from infection in adjacent tissues
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| − | *'''Osteomyelitis''' = inflammation of medullary cavity
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| − | ===Osteitis===
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| − | *E.g.: [[Fusobacterium necrophorum|''Fusobacterium necrophorum'']] in the foot, [[Respiratory Bacterial Infections - Pathology#Necrotic laryngitis|calf diphteria]], bite wounds, extension from paranasal sinuses, compound fractures, extensions from infections in the joints, [[Alveolar Periostitis|periodontal disease]], [[Respiratory Bacterial Infections - Pathology#Atrophic Rhinitis|Atrophic rhinitis]]
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| − | [[Category:Bones - Inflammatory Pathology]]
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| | ===Osteomyelitis=== | | ===Osteomyelitis=== |