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Diseases of the nasal cavity and sinuses (view source)
Revision as of 21:31, 29 November 2006
, 21:31, 29 November 2006→Fungal infections
***URT infection can be indistinguishable clinically from Strangles, but does not cause suppurative lymphadenitis (cf: S.equi subsp. equi)
***URT infection can be indistinguishable clinically from Strangles, but does not cause suppurative lymphadenitis (cf: S.equi subsp. equi)
====Fungal infections====
====Fungal infections====
*Filamentous fungal organisms
**Aspergillus fumigatus
***Guttural pouch infections in horses - fungal plaques form on the adventitia of the carotid arteries can lead to catastrophic haemorrhage following erosion of carotid arteries!
***Nasal infection in dogs and cats - plaques develop on the nasal or paranasal sinus epithelium. Result in severe neutrophilic rhinitis/sinusitis. Can occur secondary to areas of mucosal compromise eg: adjacent to a space-occupying lesion.
**Mucor spp.
*Yeast-like fungal organisms
**Cryptococcus neoformans
***Most commonly in cats and dogs
***Chronic granulomatous rhinitis
***Can invade through adjacent structures, eg: through the cribiform plate into the brain! These cases therefore can present as a primary neurological disease.
====Parasitic infections ====
*Oestrus ovis larvae in the nasal cavity of sheep and goats = Nasal bots'