Difference between revisions of "Sinusitis"

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=='''Sinusitis'''==
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*Often undetected unless it causes facial deformity or a draining tract onto the skin
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*Seromucous sinuitis in not significant, often an extension of viral infection in [[Nasal cavity - inflammatory#Rhinitis|nasal cavity]]
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*Purulent sinusitis tends to obstruct drainage -> chronic purulent sinusitis
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*Most important in horses due to their complex sinuses
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*'''Primary''':
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**Young horses are more prone as they are susceptible to [[Respiratory Bacterial Infections - Pathology#Strangles|Strangles]]
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**Following transient systemic [[Streptococci|''Streptococcus'']] infection
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**Rarely [[Respiratory Fungal Infections - Pathology#In Horses|fungal infections]]
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*'''Secondary''':
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**Most common sequel to [[Nasal cavity - inflammatory#Rhinitis|rhinitis]]
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**Dental or periodontal disease (maxillary sinus)
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**Penetrating infections from dehorning wounds and fractures of facial bones (frontal sinus)
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**Expanding mass
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*Purulent inflammation of sinuses is likely to become chronic due to poor drainage
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*Inflammation may block the drainage of the sinuses and cause distortion of the overlying bones
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*May result in empyema, inspissated exudate, in horses
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*In sheep often due to [[Respiratory Parasitic Infections - Pathology#Oestrus ovis|''Oestrus ovis'']] infection
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=='''Infectious causes of sinusitis'''==
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{| cellpadding="10" cellspacing="0" border="1"
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| .
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| [[Respiratory Viral Infections - Pathology|'''VIRAL''']]
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| [[Respiratory Bacterial Infections - Pathology|'''BACTERIAL''']]
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| [[Respiratory Fungal Infections - Pathology|'''FUNGAL''']]
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| [[Respiratory Parasitic Infections - Pathology|'''PARASITIC''']]
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|-
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| '''Dogs'''
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| .
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| secondary
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| [[Respiratory Fungal Infections - Pathology#In Dogs|''A. fumigatus'']]
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| [[Respiratory Parasitic Infections - Pathology#Linguatula serrata|''Linguatula serrata]]
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|-
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| .
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| .
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| .
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| .
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| [[Respiratory Parasitic Infections - Pathology#Capillaria aerophila|''Capillaria aerophila'']]
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|-
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| '''Cats'''
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| [[Respiratory Viral Infections - Pathology#Feline viral rhinotracheitis|Feline viral rhinotracheitis]]
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| secondary
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| [[Respiratory Fungal Infections - Pathology#In Cats|''Aspergillus fumigatus'']]
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| [[Respiratory Parasitic Infections - Pathology#Linguatula serrata|''Linguatula serrata]] sometimes
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|-
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| .
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| .
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| .
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| .
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| [[Respiratory Parasitic Infections - Pathology#Capillaria aerophila|''Capillaria aerophila'']]
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|-
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| '''Horses'''
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| .
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| [[Respiratory Bacterial Infections - Pathology#Strangles|Strangles]]
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| [[Respiratory Fungal Infections - Pathology#In Horses|''Aspergillus'' spp.]]
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| .
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|-
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| .
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| .
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| [[Respiratory Bacterial Infections - Pathology#Streptococcus equi subsp. zooepidemicus|''Streptococcus equi subsp. zooepidemicus'']]
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| .
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| .
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|-
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| '''Cattle'''
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| .
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| secondary
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| .
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| .
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|-
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| '''Sheep'''
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| .
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| .
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| .
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| [[Respiratory Parasitic Infections - Pathology#Oestrus ovis|''Oestrus ovis'' larvae]]
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|-
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| '''Pigs'''
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| [[Respiratory Viral Infections - Pathology#Inclusion body rhinitis|Inclusion body rhinitis]]
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| .
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| .
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| .
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|-
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|}
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<big>'''For an overview of respiratory infections see [[Respiratory System Inflammation - Pathology]]'''</big>

Revision as of 22:31, 31 July 2008

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()Map CARDIORESPIRATORY SYSTEM (Map)
PARANASAL SINUSES



Sinusitis

  • Often undetected unless it causes facial deformity or a draining tract onto the skin
  • Seromucous sinuitis in not significant, often an extension of viral infection in nasal cavity
  • Purulent sinusitis tends to obstruct drainage -> chronic purulent sinusitis
  • Most important in horses due to their complex sinuses
  • Primary:
  • Secondary:
    • Most common sequel to rhinitis
    • Dental or periodontal disease (maxillary sinus)
    • Penetrating infections from dehorning wounds and fractures of facial bones (frontal sinus)
    • Expanding mass
  • Purulent inflammation of sinuses is likely to become chronic due to poor drainage
  • Inflammation may block the drainage of the sinuses and cause distortion of the overlying bones
  • May result in empyema, inspissated exudate, in horses

Infectious causes of sinusitis

. VIRAL BACTERIAL FUNGAL PARASITIC
Dogs . secondary A. fumigatus Linguatula serrata
. . . . Capillaria aerophila
Cats Feline viral rhinotracheitis secondary Aspergillus fumigatus Linguatula serrata sometimes
. . . . Capillaria aerophila
Horses . Strangles Aspergillus spp. .
. . Streptococcus equi subsp. zooepidemicus . .
Cattle . secondary . .
Sheep . . . Oestrus ovis larvae
Pigs Inclusion body rhinitis . . . 


For an overview of respiratory infections see Respiratory System Inflammation - Pathology
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