Difference between revisions of "Category:Effusions"

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===[[Exudate]]===
 
===[[Exudate]]===
  
===Haemorrhage===
+
===[[Haemorrhagic Effusion]]===
  
*Turbid - red
 
*Specific gravity 1.025 - 1.040
 
*Total protein > 30g/L
 
*Nucleated cells 1.5 - 10 x 10e9/L
 
*WBC from peripheral blood (including [[Neutrophils - WikiBlood|neutrophils]] and [[Macrophages - WikiBlood|macrophages]])
 
  
*Recent or iatrogenic
 
**Erythrocytes
 
**Platelet clumps
 
*Long standing haemorrage
 
**Macrophages with erythrophagia of haeme pigment
 
*''In horses'' in addition to the above
 
**Haemorrhagic diapedesis
 
***Leakage of blood and fluid from the gut secondary to compromised vascular supply and venous return
 
***Seen with interstitial necrosis/ischaemia
 
***Fluid appears serosanguinous
 
 
'''Due to'''
 
*Most commonly seen in cats and dogs due to traumatic injury to the [[Liver - Anatomy & Physiology|liver]] (e.g. [[Infectious Canine Hepatitis|infectious canine hepatitis]]), spleen (e.g. '''haemangiosarcoma''') and kidney
 
*Warfarin toxicity
 
*Moldy sweet clover hay fed to pregnant cows may bleed from umbilical vessels into [[Peritoneal cavity - Anatomy & Physiology|peritoneum]]
 
*Manual ablation of [[Corpus Luteum|corpus luteum]] in cattle
 
  
 
===Chylous effusion===
 
===Chylous effusion===

Revision as of 11:21, 10 June 2010

Effusions

  • Increased amount of fluid in peritoneal, pleural or pericardial cavity
  • Not a disease in itself
  • Indicates pathological process affecting fluid production and/or removal
  • Classification
    • Based on cell counts and total protein
      • Transudate
      • Modified transudate
      • Exudate
    • Haemorrhage
    • Chylous effusion
  • Transudate and modified transudate are usually present in the clinical sign "ascites"



Transudate

Modified Transudate

Exudate

Haemorrhagic Effusion

Chylous effusion

  • Opaque, milky
  • Specific gravity > 1.017
  • Total protein > 30g/L (variable)
  • Nucleated cells 1.5 - 20 x 10e9/L
  • Small lymphocytes, mature neutrophils, variable macrophages)
  • Chyle
    • Triglycerides in fluid > in serum
    • Cholesterol in fluid < in serum
    • Formation of "cream top" (chylomicrons) if refrigerated
    • Does not deparate on centrifugation
    • Sudan III staining lipid droplets

Ectopic sources of fluid

  • Urine
    • Uroabdomen
    • Transudate or modified transudate

Pages in category "Effusions"

The following 5 pages are in this category, out of 5 total.