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