Difference between revisions of "Pleuritis"

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==Pleuritis==
 
==Pleuritis==
  
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*Common in animals
 
*Common in animals
 
*Inflammatory agents reach the pleura by:
 
*Inflammatory agents reach the pleura by:
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**Extension from [[Lungs Inflammatory - Pathology|pneumonia]]
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**Extension from [[:Category:Pneumonia|pneumonia]]
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***Pleuropneumonia (fibrinous [[Lungs Inflammatory - Pathology#Bronchopneumonia|bronchopneumonia]])- inflammation of [[Mesothelial cells|mesothelial cells]] associated with parenchymal disease due to bacterial infection
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***Pleuropneumonia (fibrinous [[Bronchopneumonia|bronchopneumonia]])- inflammation of [[Mesothelial cells|mesothelial cells]] associated with parenchymal disease due to bacterial infection
 
**Bloodstream
 
**Bloodstream
 
**Trans-diaphragmatic lymphatics from [[Peritonitis|peritoneal cavity]]
 
**Trans-diaphragmatic lymphatics from [[Peritonitis|peritoneal cavity]]
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****Organising fibrinous pleuritis in which the visceral pleura becomes enveloped in a restrictive fibrous blanket  
 
****Organising fibrinous pleuritis in which the visceral pleura becomes enveloped in a restrictive fibrous blanket  
 
****Pleural adhesions, especially common in ruminants and pigs
 
****Pleural adhesions, especially common in ruminants and pigs
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*Granulomatous pleuritis may cause [[Bones Hyperplastic and Neoplastic - Pathology#Hypertrophic osteopathy|hypertrophic osteopathy]]
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*Granulomatous pleuritis may cause [[Hypertrophic Osteopathy|hypertrophic osteopathy]]
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===[[Pyothorax]] (Thoracic empyema)===
  
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===Pyothorax (Thoracic empyema)===
 
  
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*Purulent effusion in the pleural space
 
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*Most significant in:
 
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**'''Horses'''
 
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***Usually secondary to [[Lungs Inflammatory - Pathology|pneumonia]] or [[Lungs Inflammatory - Pathology#Pulmonary abscesses|lung abscesses]]
 
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***[[:Category:Streptococcus species|''Streptococci'']] are most commonly isolated
 
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***Usually yellow exudate
 
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***Often triggered by stress of travelling, competition or similar
 
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**'''Dogs'''
 
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***Often results from migrating grass awns
 
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***[[:Category:Actinomycetes|''Actinomyces, Nocardia'']] and [[Bacteroides|''Bacteroides'' spp.]] are the most frequently recovered organisms
 
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***Usually blood stained viscous or creamy exudate, often bilateral
 
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***Yellowish granules may be present within the exudate
 
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***Thickened pleura, sometimes fibrinous
 
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**'''Cats'''
 
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***Pathogenesis is unclear, possible due to bite wounds or penetrated oesophagus
 
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***[[Pasteurella multocida|''P. multocida'']] and other Gram-negative organisms are frequently recovered
 
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***Usually creamy yellow or greyish brown exudate, often bilateral
 
  
  
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|-
 
|-
 
| '''Horses'''
 
| '''Horses'''
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| [[HHendra Virus|Hendra virus]]
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| [[Hendra Virus|Hendra virus]]
 
| extension from nasopharyngeal flora
 
| extension from nasopharyngeal flora
 
| .
 
| .
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=Test yourself with the Pleural Cavity and Membranes Pathology Flashcards=
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==Test yourself with the Pleural Cavity and Membranes Pathology Flashcards==
  
 
[[Pleural_Cavity_and_Membranes_Flashcards_-_Pathology|Pleural Cavity and Membranes Pathology Flashcards]]
 
[[Pleural_Cavity_and_Membranes_Flashcards_-_Pathology|Pleural Cavity and Membranes Pathology Flashcards]]
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[[Category:Pleural Cavity and Membranes - Pathology]]
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[[Category:Respiratory System - Inflammatory Pathology]]

Latest revision as of 13:14, 3 March 2011

Pleuritis

  • Inflammation of the pleura
  • Common in animals
  • Inflammatory agents reach the pleura by:
  • Common acute forms:
    • Purulent
    • Fibrinous
      • Common sequele:
        • Organising fibrinous pleuritis in which the visceral pleura becomes enveloped in a restrictive fibrous blanket
        • Pleural adhesions, especially common in ruminants and pigs
  • Granulomatous pleuritis may cause hypertrophic osteopathy

Pyothorax (Thoracic empyema)

Infectious causes of pleuritis

. VIRAL BACTERIAL FUNGAL PARASITIC
Dogs . Nocardia . .
. . Actinomyces and Bacteroides spp. . .
. . Tuberculosis . .
Cats FIP P. multocida and other Gram-negative organisms . .
Horses Hendra virus extension from nasopharyngeal flora . .
. . Streptococci . .
Cattle . Pneumonic pasteurellosis . .
. . Tuberculosis . .
. . Contagious bovine pleuropneumonia . .
Sheep . Enzootic pneumonia . .
Pigs Swine influenza Actinobacillus pleuropneumoniae . .
. . Pasteurellosis . .
. . Contagious porcine pleuropneumonia . .
. . Glasser's disease . .

Test yourself with the Pleural Cavity and Membranes Pathology Flashcards

Pleural Cavity and Membranes Pathology Flashcards

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