Difference between revisions of "Bones Degenerative - Pathology"
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| + | [[:Category:Bones - Metabolic Pathology|'''Bones and Cartilage - Metabolic diseases''']] | ||
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| + | [[Bones Fractures - Pathology|'''Bones and Cartilage - Fractures''']] | ||
| + | </big> | ||
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| + | ===[[Osteoporosis]] (Atrophy)=== | ||
| + | |||
| + | ===[[Osteosis]]=== | ||
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| + | ===Bone cysts=== | ||
| + | [[Image:Bone cysts dog.jpg|right|thumb|100px|<small><center>Bone cysts (Image sourced from Bristol Biomed Image Archive with permission)</center></small>]] | ||
| + | *May be seen radiographically | ||
| + | *Must be distinguished from [[Bones Hyperplastic and Neoplastic - Pathology#Neoplastic|neoplasia]] | ||
| + | *Expansile lytic masses | ||
| + | *Do not appear aggressive | ||
| + | *'''Subchondral cysts''' | ||
| + | **Common in horses and pigs | ||
| + | **Usually manifestations of [[Joints Developmental - Pathology#Osteochondrosis|osteochondrosis]] and [[Joints Degenerative - Pathology#Degenerative joint disease (DJD)|DJD]] | ||
| + | *'''Simple cysts''' | ||
| + | **May contain clear colourless fluid, or serosanguinous | ||
| + | **Wall of dense fibrous tissue, [[Bones - Anatomy & Physiology|woven or lamellar bone]] | ||
| + | *'''Aneurysmal bone cysts''' | ||
| + | **Expansie lesions | ||
| + | **Arise from disturbance of vascular tissue of bone marrow | ||
| + | **Grossly: | ||
| + | ***Appear as blood filled sponge | ||
| + | ***Spaces separated by fibrous trabeculae | ||
| + | **Histologically: | ||
| + | ***Proliferation of undifferentiated mesenchymal cell with multinucleated osteoclast-like cells | ||
| + | ***Haemorrhage and haemosiderosis | ||
| + | *Radiography is essential to help differentiate with cavity of a neoplasm | ||
| + | |||
| + | [[Category:Bones - Degenerative Pathology]] | ||
| + | ===Calcium hydroxylapatite deposition disease=== | ||
| + | |||
| + | *Gt Dane puppies with paraplegia | ||
| + | *Calcium phosphate depositon has been reported in multiple diarthrodial joints of the axial and appendicular skeleton | ||
| + | *[[More on Calcium hydroxylapatite deposition disease|More about Calcium hydroxylapatite deposition disease]] | ||
| + | |||
| + | [[Category:Bones - Degenerative Pathology]] | ||
| + | ===Physeal dysplasia with slipped capital femoral epiphysis=== | ||
| + | |||
| + | *Slipped capital femoral epiphysis seen in dogs, foals and calves | ||
| + | *Associated with severe trauma | ||
| + | *Pigs – manifestation of [[Joints Developmental - Pathology#Osteochondrosis|osteochondrosis]] with only minimal trauma required | ||
| + | *Most common type of physeal fracture in small animals and the proximal femur is the most common site | ||
| + | *In horses, physeal dysplasia is synonymus with [[Physitis|physitis]] | ||
| + | *[[More about Physeal dysplasia]] | ||
| + | |||
| + | [[Category:Bones - Degenerative Pathology]] | ||
Revision as of 11:57, 3 March 2011
Bones and Cartilage - Metabolic diseases
Bones and Cartilage - Fractures
Osteoporosis (Atrophy)
Osteosis
Bone cysts
- May be seen radiographically
- Must be distinguished from neoplasia
- Expansile lytic masses
- Do not appear aggressive
- Subchondral cysts
- Common in horses and pigs
- Usually manifestations of osteochondrosis and DJD
- Simple cysts
- May contain clear colourless fluid, or serosanguinous
- Wall of dense fibrous tissue, woven or lamellar bone
- Aneurysmal bone cysts
- Expansie lesions
- Arise from disturbance of vascular tissue of bone marrow
- Grossly:
- Appear as blood filled sponge
- Spaces separated by fibrous trabeculae
- Histologically:
- Proliferation of undifferentiated mesenchymal cell with multinucleated osteoclast-like cells
- Haemorrhage and haemosiderosis
- Radiography is essential to help differentiate with cavity of a neoplasm
Calcium hydroxylapatite deposition disease
- Gt Dane puppies with paraplegia
- Calcium phosphate depositon has been reported in multiple diarthrodial joints of the axial and appendicular skeleton
- More about Calcium hydroxylapatite deposition disease
Physeal dysplasia with slipped capital femoral epiphysis
- Slipped capital femoral epiphysis seen in dogs, foals and calves
- Associated with severe trauma
- Pigs – manifestation of osteochondrosis with only minimal trauma required
- Most common type of physeal fracture in small animals and the proximal femur is the most common site
- In horses, physeal dysplasia is synonymus with physitis
- More about Physeal dysplasia