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For Healthy Pets

Over 150 articles on companion animal health written by authorities including Dr. Jeff Feinman, a qualified vet and leading veterinary homeopath.

In these entertaining and informative pet health articles, Dr. Jeff and quest writers cover important pet health areas.
Friday, 04 March 2011 03:24

Bone Tumors In Dogs and Cats

Written by OncoLink
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Most primary bone tumors in dogs are malignant, and approximately 85 % are osteosarcomas.

Osteosarcomas are highly aggressive tumors, characterized by local invasion/destruction and distant metastasis (spread to other organs).

 

Osteosarcoma commonly affects the appendicular skeleton (limbs) of large to giant breed dogs, but can also occur in the axial skeleton (skull, ribs, vertebrae, pelvis), which is a more common primary site in smaller dogs. Other bone tumors include chondrosarcoma, fibrosarcoma, hemangiosarcoma, liposarcoma, multiple myeloma, and metastatic bone tumors. The biological behavior, prognosis, and treatment of these tumors depends on tumor type, primary site (location), and extent of disease (stage). Therefore, various diagnostic tests such as radiographs (X-rays), bloodwork, and a biopsy are required to determine the most appropriate treatment.


The signs associated with a bone tumor may be nonspecific and depend on the primary site.

 

Tumors in the limbs often cause various degrees of lameness and pain, and a firm swelling may become evident as the tumor size increases. The pain can cause other problems such as irritability, aggression, loss of appetite, weight loss, whimpering, crying, sleeplessness, and reluctance to exercise. Tumors in non-weight-bearing bones may initially appear as a solid, firm mass. Other clinical signs may vary, depending on the primary site and involvement of underlying structures. 


Please read more about bone tumors:

Read 6639 times Last modified on Monday, 30 January 2012 17:55
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