Bone Tumors

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Filed Under: Neurology

Bone tumors can involve either the appendicular (limbs) or axial (spine, ribs, pelvis, scapula, and skull) skeleton.  The tumors are classified as either primary (i.e., arise directly in bone) or secondary (i.e., spread from an adjacent site, such as multipl myeloma of the bone marrow or metastasize from a distant site, such as transitional cell carcinoma of the urinary bladder).  The four primary bone tumors are osteosarcoma, chondrosarcoma, fibrosarcoma, and hemangiosarcomaOsteocarcoma is the most common primarily bone tumor and accounts for 95% of all bone tumors.  In dogs, appendicular osteosarcoma is a highly aggressive disease and curative-intent treatment involves surgical resection of the tumor followed by chemotherapy to minimize the risk of tumor cells speading (metastasizing) to other areas, particular the lungs and other bones.

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