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Muscles Inflammatory - Pathology (view source)

Revision as of 18:54, 3 March 2011

374 bytes added , 18:54, 3 March 2011

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==Myositis==

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[[Bacterial Myositis]]

*Inflammation of muscle

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*Occasionally my spread via the fascia

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[[Category:Muscles - Inflammatory Pathology]]

====[[Black Leg]]====

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===Viral myositis===

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===[[Viral myositis]]===

*Rare in the UK

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====[[Bluetongue Virus|Bluetongue]]====

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===Parasitic ~~myositis~~===

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[[Category:Muscles - Inflammatory Pathology]]

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===[[Parasitic Myositis]]===

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**May occasionally burrow into muscle

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===Immune-~~mediated~~ myositis===

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[[Category:Muscles - Inflammatory Pathology]]

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===[[Immune-Mediated myositis]]===

====Masticatory muscle myositis (MMM)====

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***Condensation of stroma -> enlarged endomysium

***Focal plasma cell and lymphocyte infiltration

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[[Category:Muscles - Inflammatory Pathology]]

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====[[Canine Dermatomyositis|Canine dermatomyositis]]====

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*Single biopsy may not be enough to make the diagnosis as it tends to be multifocal and disseminated

*Lesions similar to some infectious causes (such as ''[[Toxoplasma gondii]]'')

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[[Category:Muscles - Inflammatory Pathology]]

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====Canine bilateral extraocular polymyositis====

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**Multifocal necrosis of myofibres

**Lymphocytic, histiocytic and plasmacytic infiltrate with few [[Neutrophils|neutrophils]]

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[[Category:Muscles - Inflammatory Pathology]]

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**In old lesions - endimysial fibrosis, myofibre atrophy, some regeneration, lymphocytes, plasma cells, macrophages and few eosinophils

**Capsule may form

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[[Category:Muscles - Inflammatory Pathology]]

[[Category:Musculoskeletal System - Pathology]]

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