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Nasal Cavity Hyperplastic and Neoplastic - Pathology (view source)

Revision as of 18:03, 15 February 2011

827 bytes removed , 18:03, 15 February 2011

→‎Progressive ethmoidal haematoma

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[[Category:Nasal Cavity - Hyperplastic/Neoplastic Pathology]]

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===Progressive ~~ethmoidal haematoma~~===

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===[[Progressive Ethmoidal Haematoma]]===

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*Slowly expanding non-neoplastic mass of horses

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*Originates from submucosa of ethmoidal labyrinth

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*Either from nasal or sinusal portion of ethmoid labyrinth

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*Unilateral, can extend to nostrils or choanae

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*Rarely elsewhere in sinuses

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*Expands to nasal cavity, [[Paranasal Sinuses Hyperplastic and Neoplastic - Pathology|paranasal sinuses]], [[Nasopharynx Hyperplastic and Neoplastic - Pathology|nasopharynx]] causing destruction of tissue

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*Micro - haemorrhage, calcification of connective tissue fibres

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*[[Aspergillus spp.|''Aspergillus'' spp.]] may be present on the lesion

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*May cause [[Respiratory System Clinical Signs - Pathology#Epistaxis|epistaxis]]

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*Can recur after surgical excision

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*May arise subsequently to [[Rhinitis#Chronic rhinitis|chronic inflammation]]

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~~[[Category:Nasal Cavity - Hyperplastic/Neoplastic Pathology]]~~

===Nasal polyps===

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Nasal Cavity Hyperplastic and Neoplastic - Pathology (view source)

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