Difference between revisions of "Osteoma"
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*Histologically: | *Histologically: | ||
**Covered with thin layer of bone | **Covered with thin layer of bone | ||
| − | **Consist of [[Bones - | + | **Consist of [[Bones - normal#Bone organisation|cancellous bone]] |
| − | **Differentiated [[Bones - | + | **Differentiated [[Bones - normal#Normal structure|osteoblasts and osteoclasts]] |
*Cause disfigurement, may obstruct nasal passages | *Cause disfigurement, may obstruct nasal passages | ||
*Recur if not completely removed | *Recur if not completely removed | ||
| Line 20: | Line 20: | ||
===In Horses=== | ===In Horses=== | ||
*Haemartoma arising from periosteum of the skull or facial bones | *Haemartoma arising from periosteum of the skull or facial bones | ||
| − | *See [[Osteoma|Bones and Cartilage - hyperplastic and neoplastic]] | + | *See [[Bones Hyperplastic and Neoplastic - Pathology#Osteoma|Bones and Cartilage - hyperplastic and neoplastic]] |
*Benign | *Benign | ||
*Clinical signs: | *Clinical signs: | ||
| Line 29: | Line 29: | ||
| − | [[Category:Paranasal Sinuses - | + | [[Category:Paranasal Sinuses - Pathology]] |
[[Category:Neoplasia]] | [[Category:Neoplasia]] | ||
Revision as of 16:41, 17 February 2011
Bones
- Benign neoplasm of bone
- Uncommon
- In horses and cattle
- Sites
- Flat bones (skull, scapula)
- Mainly affect jaws and sinuses
- Grossly:
- Smooth bordered, slow-growing tumours
- Histologically:
- Covered with thin layer of bone
- Consist of cancellous bone
- Differentiated osteoblasts and osteoclasts
- Cause disfigurement, may obstruct nasal passages
- Recur if not completely removed
Paranasal Sinuses
In Horses
- Haemartoma arising from periosteum of the skull or facial bones
- See Bones and Cartilage - hyperplastic and neoplastic
- Benign
- Clinical signs:
- Mucopurulent discharge
- Facial distortion
- Epiphora
- Obstructed air flow