Difference between revisions of "Sinusitis"

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m (Text replace - "[[Nasal Cavity Inflammatory - Pathology" to "[[Rhinitis")
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*Often undetected unless it causes facial deformity or a draining tract onto the skin
 
*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 Inflammatory - Pathology#Rhinitis|nasal cavity]]
+
*Seromucous sinuitis in not significant, often an extension of viral infection in [[Rhinitis#Rhinitis|nasal cavity]]
 
*Purulent sinusitis tends to obstruct drainage -> chronic purulent sinusitis
 
*Purulent sinusitis tends to obstruct drainage -> chronic purulent sinusitis
 
*Most important in horses due to their complex sinuses
 
*Most important in horses due to their complex sinuses
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**Rarely [[Respiratory Fungal Infections - Pathology#In Horses|fungal infections]]  
 
**Rarely [[Respiratory Fungal Infections - Pathology#In Horses|fungal infections]]  
 
*'''Secondary''':
 
*'''Secondary''':
**Most common sequel to [[Nasal Cavity Inflammatory - Pathology#Rhinitis|rhinitis]]
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**Most common sequel to [[Rhinitis#Rhinitis|rhinitis]]
 
**Dental or periodontal disease (maxillary sinus)
 
**Dental or periodontal disease (maxillary sinus)
 
**Penetrating infections from dehorning wounds and fractures of facial bones (frontal sinus)
 
**Penetrating infections from dehorning wounds and fractures of facial bones (frontal sinus)

Revision as of 17:08, 15 February 2011


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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