Difference between revisions of "Muscles Developmental - Pathology"

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===Myasthenia gravis (MG)===
+
===[[Myasthenia Gravis]] (MG)===
  
*'''Acquired'''
 
**Autoimmune disease
 
***Antibodies directed against acetyl choline receptors
 
**Associated with [[Thymus neoplasia|thymomas]], [[Megaoesophagus|megaoesophagus]] and dysphagia
 
**In adult dogs
 
*'''Congenital'''
 
**Inherited deficiency in acetyl choline receptors
 
**Rare
 
**Newfoundland, Jack Russel Terrier, Springer Spaniels – genetic predisposition
 
**In dogs – 4 DLA genes recognized: DLA-12, DLA-88, DLA-79 and DLA-64
 
**Associated with HLA gene in humans
 
**No antibodies against acetyl choline receptors in serum
 
**Non-specific muscle [[Muscles Degenerative - Pathology#Atrophy|disuse atrophy]] and fibrosis or no changes on histology
 
*Both forms manifest as weakness which worsens on exercise
 
 
[[Category:Muscles - Developmental Pathology]]
 
  
  

Revision as of 17:32, 3 March 2011