VETERINARY-Tumors and tumor-like lesions of bones
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| Most bone tumors in dogs are malignant. True of False? | True
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| What is the most common and important bone tumor of dogs and cats? | Osteosarcoma
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| Where do osteosarcomas usually occur? | Predilection sites are proxmimal humerus, distal radius, distal femur, and proximal tibia (also at sites of chronic irritation like metal implants)
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| What is the likely behavior of a canine osteosarcoma? | Highly malignant, metastasis to lungs, survival 14-19 weeks
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| Osteosarcomas are 80% of primary bone tumors in dogs. True or False? | True
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| Chondrosarcomas are only 10% of canine bone tumors in medium to large breeds. True or False? | True
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| What bones to chondrosarcomas usually occur in? | Generally involves flat bones,(ribs, pelvis, nasal turbinates)
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| What is a benign tumor that only enlarges until the skeleton matures? | Osteochondroma
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| Osteochondromas have a cap of hyaline cartilage, the marrow cavity of the mass is continuous with that of the underlying bone. True or False? | True
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| This is a tumor that adheres firmly to the surface of maxillary bone and is locally invasive. | Maxillary fibrosarcoma
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| What are characteristics of a plasma cell myeloma? | Lytic lesions in bone marrow, hyperproteinemia
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| Osteosarcomas can be found in mammary tissue. True or False? | True
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| Squamous cell carcinomas invade bone. True or False? | True
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| Name 2 malignant tumors of joints. | Synovial sarcoma and histiocytic sarcoma
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