Difference between revisions of "Nasal Cavity - Degenerative Pathology"
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| + | {{review}} | ||
| − | + | {{toplink | |
| + | |backcolour = D1EEEE | ||
| + | |linkpage =Cardiorespiratory System - Pathology | ||
| + | |linktext =Cardiorespiratory System | ||
| + | |maplink = Cardiorespiratory System (Content Map) - Pathology | ||
| + | |pagetype =Pathology | ||
| + | |sublink1=Nasal Cavity - Pathology | ||
| + | |subtext1=NASAL CAVITY | ||
| + | }} | ||
| + | <br> | ||
| + | ==In Horses== | ||
| + | |||
| + | ===Nasal septum abnormalities=== | ||
| + | |||
| + | *Thickening caused by | ||
| + | **Trauma | ||
| + | **Infection | ||
| + | **[[Nasal Cavity Hyperplastic and Neoplastic - Pathology|Neoplasia of nasal septum]], carcinomas most common | ||
| + | **Amyloidosis (below) | ||
| + | **[[Wry Nose|Wry nose]] | ||
| + | **[[Paranasal Sinuses Inflammatory - Pathology|Empyema]], [[Paranasal Sinuses Hyperplastic and Neoplastic - Pathology|neoplasia]], [[Paranasal sinuses - Pathology|cysts]] of sinuses | ||
| + | |||
| + | |||
| + | ===Nasal amyloidosis=== | ||
| + | |||
| + | *Deposition of amyloid in nasal submucosa of horses | ||
| + | *Not part of generalised amyloidosis | ||
| + | *May extend to [[Larynx - Anatomy & Physiology|larynx]] | ||
| + | *Nodular of diffuse | ||
| + | *Stenosis may cause obstruction | ||
| + | *Smooth surface, waxy sheen on cut surface | ||
| + | *Macrophages and lymphocytes, giant cells | ||
| + | *May have overlying ulceration of mucosa | ||
| + | *Large firm nodules in alar folds, rostral nasal septum and floor of nasal cavity | ||
| + | *Micro: | ||
| + | **Deposition of hyaline material in nasal mucosa | ||
| + | |||
| + | ==Circulatory disturbances== | ||
| + | |||
| + | ===Congestion and Hyperaemia=== | ||
| + | |||
| + | *Congestion - passive interference with venous return | ||
| + | **Non-specific | ||
| + | **Commonly found at post-mortem | ||
| + | *Hyperaemia - active vasodilation | ||
| + | **Associated with early stages of inflammation | ||
| + | |||
| + | |||
| + | ===Haemorrhage=== | ||
| + | |||
| + | *Can result from local trauma or just transfer blood from lower down in the respiratory tract (see [[Respiratory System Clinical Signs - Pathology#Epistaxis|epistaxis]]) | ||
Revision as of 13:43, 19 July 2010
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In Horses
Nasal septum abnormalities
- Thickening caused by
- Trauma
- Infection
- Neoplasia of nasal septum, carcinomas most common
- Amyloidosis (below)
- Wry nose
- Empyema, neoplasia, cysts of sinuses
Nasal amyloidosis
- Deposition of amyloid in nasal submucosa of horses
- Not part of generalised amyloidosis
- May extend to larynx
- Nodular of diffuse
- Stenosis may cause obstruction
- Smooth surface, waxy sheen on cut surface
- Macrophages and lymphocytes, giant cells
- May have overlying ulceration of mucosa
- Large firm nodules in alar folds, rostral nasal septum and floor of nasal cavity
- Micro:
- Deposition of hyaline material in nasal mucosa
Circulatory disturbances
Congestion and Hyperaemia
- Congestion - passive interference with venous return
- Non-specific
- Commonly found at post-mortem
- Hyperaemia - active vasodilation
- Associated with early stages of inflammation
Haemorrhage
- Can result from local trauma or just transfer blood from lower down in the respiratory tract (see epistaxis)