tumors of appendicular & axial skeleton Flashcards
what is the most common primary bone tumor in dogs & cats?
osteosarcoma - 85 % of bone tumors in dogs
what breeds are at risk of getting OSA?
large to giant breeds ( >40 kg)
what is a common fact about Rotties and OSA?
1 in 4 early (< 1 yr) gonadectomized rotties have a lifetime risk of OSA
what age do we see OSA occurring at?
there’s a bimodal distribution at 1-2 yrs & 7-9 yrs
- 7-9 years is more common`
what are some common breeds we see OSA in ?
- rotties
- great danes
- whippets
- irish wolfhound
what is the presenting complaint with OSA?
- lameness & localized limb swelling
true or false.
dogs that have fungal infections are usually systemically ill.
true
what percentage of OSA occurs in the appendicular skeleton?
75-80%
what is more affected, front or hind limbs?
front
where are the most common sites of OSA on forelimb?
distal radius - most common
proximal humerus - 2nd most common site
where does OSA favor to develop in bone?
the metaphyseal region
what are the 3 basic types of OSA ?
- endosteal
- periosteal
- parosteal
what type of OSA is most common ?
endosteal
periosteal and parosteal are rare
what is something seen on CBC/CHEM that can show an aggressive OSA ?
elevated ALP, there has been an association with more aggressive cancers showing higher ALP values
true or false.
OSA usually mets to the lymph nodes and a cytopathology should be performed.
false, doesn’t usually met to lymph nodes
