Shared Flashcard Set

Details

Diagnostic Imaging
Bone Tumors
35
Veterinary Medicine
Professional
03/04/2012

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Cards

Term
T/F: Primary malignant bone tumors usually do not cross joint spaces.
Definition
T
Term
T/F: Primary malignant bone tumors remain monostotic
Definition
T
Term
80% of malignant bone tumors in dogs are ________.
Definition
Osteosarcomas
Term
T/F: wrt malignant bone tumors in dogs, fibrosarcomas are more common than chondrosarcomas & hemangiosarcomas.
Definition
F
Term
_____% of malignant bone tumors in cats are osteosarcomas.
Definition
70%
Term
T/F: The mean age of development of osteosarcoma in cats is 7.5-8yr
Definition
F
Term
Giant breed dogs have ____x greater risk of developing osteosarcoma. Large breeds have _____x greater risk.
Definition
60; 8
Term
T/F: Appendicular osteosarcomas are more common in female dogs.
Definition
F
Term
T/F: The majority of canine osteosarcomas are located in flat bones.
Definition
F
Term
In which long bones are canine osteosarcomas all distal?
Definition
radius & ulna
Term
T/F: Of canine osteosarcomas in the femur and tibia, 1/3 are proximal & 2/3 distal
Definition
T
Term
What is the most common flat bone for canine osteosarcoma?
Definition
Ribs
Term
What breed has a higher incidence of osteosarcoma in the distal radius? Which breed has less?
Definition
Great Dane; Boxer
Term
With osteosarcoma, there is a ____ zone of transition.
Definition
Long
Term
Are osteosarcomas polyostotic or monostotic?
Definition
Monostotic
Term
Chondrosarcomas comprise _____% of primary bone tumors in dogs.
Definition
10%
Term
T/F: Chondrosarcomas are more common in flat bones than long bones.
Definition
T
Term
With chondrosarcomas, the zone of transition is relatively _____.
Definition
Short
Term
Fibrosarcomas comprise _____% of primary bone tumors in dogs
Definition
3-4%
Term
Hemangiosarcomas comprise _____% of bone tumors in dogs.
Definition
3-4%
Term
T/F: Liposarcomas are common in dogs.
Definition
F
Term
Multilobular tumors of bones have local recurrence in _____%
Definition
47%
Term
Multilobular tumors of bones metastasize in _____%
Definition
56%
Term
T/F: Multilobular tumors of bones usually metastasize to the lungs.
Definition
T
Term
Which bone tumor has multiple characteristic "punched out" bone lesions?
Definition
Multiple myeloma
Term
Osteochondromas in the cat have _____ etiology.
Definition
Viral
Term
T/F: Occult micrometastases are frequently present at the time of primary tumor Dx
Definition
T
Term
Are there more patients w/ primary bone tumors or bone metastases?
Definition
Mets
Term
T/F: Bone metastasis is more common in dogs >25kg
Definition
F
Term
_____% of mets in dogs <15kg
Definition
30%
Term
T/F: Bone metastasis is seen in a different age population from primary bone tumors.
Definition
T
Term
In dogs, bone metastases in long bones are usually _____
Definition
Diaphyseal
Term
T/F: Bone mets are uncommon distal to the elbow/stifle joints
Definition
T
Term
T/F: Cortical destruction is important in Dx of synovial cell sarcoma
Definition
T
Term
T/F: Synovial cell sarcoma is a tumor that affects >1 bone.
Definition
T
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