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Respiratory Parasitic Infections - Pathology (view source)

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===~~[[Metastrongyloidae|~~'''''Filaroides osleri''''']]===

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==='''''[[Filaroides osleri]]'''''===

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* = ''Oslerus osleri''

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*Colonise the [[Trachea Inflammatory - Pathology#Infectious causes of tracheitis|trachea of dogs]]

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*Larva and adults accumulate in submucosal nodules of up to 1cm diameter at the tracheal bifurcation.

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*Minimal inflammatory host reaction to the nematodes when they are alive - the size of the nodule is related to the number and size of the nematodes within it.

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*When the parasites die, an intense foreign body reaction develops

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*Tracheal nodules can cause coughing, usually in young dogs <18 months old.

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*Severe infestation can cause significant occlusion of the airway.

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*Uncommon, but sometimes seen in coughing greyhounds

===[[Crustacea|''Linguatula serrata'']]===

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