Difference between revisions of "Muscles Degenerative - Pathology"
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**Hypereosinophilic | **Hypereosinophilic | ||
**Lost cross striations | **Lost cross striations | ||
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===[[Muscle Calcification]]=== | ===[[Muscle Calcification]]=== | ||
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===[[Muscle Ossification]]=== | ===[[Muscle Ossification]]=== | ||
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===[[Muscle Pigmentation]]=== | ===[[Muscle Pigmentation]]=== | ||
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===[[Equine Rhabdomyolysis]]=== | ===[[Equine Rhabdomyolysis]]=== | ||
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===[[Porcine Stress Syndrome]]=== | ===[[Porcine Stress Syndrome]]=== | ||
Revision as of 18:12, 3 March 2011
Degeneration
- Different types of degeneration
- May, or may not, be reversible
- Cloudy swelling, hydropic, vacuolar, granular and fatty change
- Occur following many different types of insult and are usually segmental
- If regeneration does not occur after formation of small vacuoles, necrosis follows
- Vacuolation -> floccular degeneration -> granular degeneration -> hyaline and Zenker’s degeneration
- Vacuolar degeneration:
- Due to swelling of organelles or due to glycogen or fat accumulation
- May be caused by hypokalaemia, hyperkalaemia or necrosis
- Histologically:
- Swollen
- Hypereosinophilic
- Lost cross striations
Muscle Calcification
Muscle Ossification
Muscle Pigmentation
Nutritional myopathy
White muscle disease
Exertional myopathies
- Caused by intensive and exhaustive activity of major muscle masses
- Glycogen used up -> local heat and lactic acid -> muscle degeneration
- Other forms include capture myopathy, racing greyhounds, sheep chased by dogs
Equine Rhabdomyolysis
Porcine Stress Syndrome
Neuromuscular junction diseases
Aquired myasthenia gravis
- See congenital MG