Difference between revisions of "Progressive Ethmoidal Haematoma"

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*Unilateral, can extend to nostrils or choanae
 
*Unilateral, can extend to nostrils or choanae
 
*Rarely elsewhere in sinuses
 
*Rarely elsewhere in sinuses
*Expands to nasal cavity, [[Paranasal Sinuses Hyperplastic and Neoplastic - Pathology|paranasal sinuses]], [[Nasopharynx Hyperplastic and Neoplastic - Pathology|nasopharynx]] causing destruction of tissue
+
*Expands to nasal cavity, paranasal sinuses, [[Nasopharynx Hyperplastic and Neoplastic - Pathology|nasopharynx]] causing destruction of tissue
 
*Micro - haemorrhage, calcification of connective tissue fibres
 
*Micro - haemorrhage, calcification of connective tissue fibres
 
*[[Aspergillus spp.|''Aspergillus'' spp.]] may be present on the lesion
 
*[[Aspergillus spp.|''Aspergillus'' spp.]] may be present on the lesion

Revision as of 16:44, 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