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, | + | *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