Difference between revisions of "Bones Degenerative - Pathology"

Revision as of 11:58, 3 March 2011

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

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

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-===Bone cysts===
+===[[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===