Changes

Jump to navigation Jump to search

Muscles Degenerative - Pathology (view source)

Revision as of 17:57, 3 March 2011

423 bytes added ,  17:57, 3 March 2011
no edit summary
Line 17: Line 17:       −
===Calcification===
+
===[[Muscle Calcification]]===
 +
 
 +
 
   −
*Due to:
  −
**Old age - myofibres
  −
**Following necrosis - [[Mineralisation - Pathology#Dystrophic|dystrophic calcification]]
  −
***May be visible grossly as white foci
        Line 44: Line 42:  
***May contain accumulations of cartilage, bone or calcium
 
***May contain accumulations of cartilage, bone or calcium
 
**Hyperplastic connective tissue -> compression of adjacent skeletal muscle -> [[Muscles Degenerative - Pathology#Atrophy|atrophy]]
 
**Hyperplastic connective tissue -> compression of adjacent skeletal muscle -> [[Muscles Degenerative - Pathology#Atrophy|atrophy]]
 +
 +
[[Category:Muscles - Degenerative Pathology]]
      Line 63: Line 63:  
**Leaks to adjacent tissue after sudden injury
 
**Leaks to adjacent tissue after sudden injury
 
*May also be present after some types of intramuscular injections e.g. iron dextran or tetracycline
 
*May also be present after some types of intramuscular injections e.g. iron dextran or tetracycline
 +
 +
 +
[[Category:Muscles - Degenerative Pathology]]
      Line 83: Line 86:  
**Scattered small segments of necrosis and fast regeneration
 
**Scattered small segments of necrosis and fast regeneration
 
**Sacrolemmal tubes are intact
 
**Sacrolemmal tubes are intact
 +
 +
[[Category:Muscles - Degenerative Pathology]]
 +
 +
    
==Atrophy==
 
==Atrophy==
Line 112: Line 119:  
***Grossly:
 
***Grossly:
 
****Smaller, darker, thinner muscles
 
****Smaller, darker, thinner muscles
 +
 +
[[Category:Muscles - Degenerative Pathology]]
      Line 145: Line 154:  
**Histologically:
 
**Histologically:
 
***Tiny foci of [[Muscles Degenerative - Pathology#Necrosis|segmental necrosis]]
 
***Tiny foci of [[Muscles Degenerative - Pathology#Necrosis|segmental necrosis]]
 +
 +
 +
[[Category:Muscles - Degenerative Pathology]]
      Line 155: Line 167:  
***Type IIB myofibre atrophy is preferential in hyperadrenocorticism
 
***Type IIB myofibre atrophy is preferential in hyperadrenocorticism
 
*[[Hypothyroidism|Hypothyroidism]] can cause muscle atrophy
 
*[[Hypothyroidism|Hypothyroidism]] can cause muscle atrophy
 +
 +
 +
[[Category:Muscles - Degenerative Pathology]]
      Line 180: Line 195:  
**[[Muscles Degenerative - Pathology#Necrosis|Segmental necrosis]] +/- [[Muscles Degenerative - Pathology#Calcification|calcification]] and [[Muscle Regeneration|regeneration]]
 
**[[Muscles Degenerative - Pathology#Necrosis|Segmental necrosis]] +/- [[Muscles Degenerative - Pathology#Calcification|calcification]] and [[Muscle Regeneration|regeneration]]
 
**Multifocal and multiphasic lesions
 
**Multifocal and multiphasic lesions
 +
 +
 +
[[Category:Muscles - Degenerative Pathology]]
 +
    
==Exertional myopathies==
 
==Exertional myopathies==
Line 211: Line 230:  
**Grossly - normal muscle
 
**Grossly - normal muscle
 
**Histologically - same as azoturia
 
**Histologically - same as azoturia
 +
 +
[[Category:Muscles - Degenerative Pathology]]
      Line 229: Line 250:  
*Diagnosis by demonstration of toxin in faeces, ingested material or serum
 
*Diagnosis by demonstration of toxin in faeces, ingested material or serum
    +
 +
[[Category:Muscles - Degenerative Pathology]]
    
==Circulatory disturbances==
 
==Circulatory disturbances==
Line 238: Line 261:  
*May resemble haemorhage grossly  
 
*May resemble haemorhage grossly  
   −
 
+
[[Category:Muscles - Degenerative Pathology]]
 
===Ischaemia===
 
===Ischaemia===
   Line 279: Line 302:  
**E.g. supracoracoid muscle infarction in some breeds of turkeys after flapping their wings
 
**E.g. supracoracoid muscle infarction in some breeds of turkeys after flapping their wings
 
***Surrounded by inelastic fascial sheath and bone
 
***Surrounded by inelastic fascial sheath and bone
 +
 +
 +
[[Category:Muscles - Degenerative Pathology]]
 +
    
==Trauma==
 
==Trauma==
Line 293: Line 320:  
*Fibrosis (scarring) will compromise function
 
*Fibrosis (scarring) will compromise function
 
*During [[Bones Fractures - Pathology|fractures]], fragments may cause further trauma if moved
 
*During [[Bones Fractures - Pathology|fractures]], fragments may cause further trauma if moved
 +
 +
[[Category:Muscles - Degenerative Pathology]]
       
[[Category:Musculoskeletal System - Pathology]]
 
[[Category:Musculoskeletal System - Pathology]]
Bara
Author, Donkey, Bureaucrats, Administrators
53,803

edits

Retrieved from "https://en.wikivet.net/Special:MobileDiff/110270"

Navigation menu