Difference between revisions of "Progressive Ethmoidal Haematoma"

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[[Category:Respiratory Diseases - Horse]]
[[Category:Respiratory Diseases - Horse]]
[[Category:Paranasal Sinuses - Pathology]]
[[Category:Paranasal Sinuses - Pathology]]
[[Category:Nasopharynx - Pathology]]

Revision as of 17:11, 17 February 2011

  • Slowly expanding non-neoplastic mass of horses
  • Originates from submucosa of ethmoidal labyrinth
  • Either from nasal or sinusal portion of ethmoid labyrinth
  • Unilateral, can extend to nostrils or choanae
  • Rarely elsewhere in sinuses
  • Expands to nasal cavity, paranasal sinuses, nasopharynx causing destruction of tissue
  • Micro - haemorrhage, calcification of connective tissue fibres
  • Aspergillus spp. may be present on the lesion
  • May cause epistaxis
  • Can recur after surgical excision
  • May arise subsequently to chronic inflammation