Chondroblastic Osteosarcoma in Canines

by Naomi Millburn
    Chondroblastic osteosarcoma is one type of canine bone cancer.

    Chondroblastic osteosarcoma is one type of canine bone cancer.

    Dean Golja/Photodisc/Getty Images

    Osteosarcoma is an oft-seen bone tumor in the canine realm. Dogs of all breeds can potentially experience bone cancer, though bigger pooches are often even more susceptible to it. Immediate veterinary care is key for all dogs with bone tumors. Note that the symptoms of this type of cancer are frequently mild, however.

    Varieties of Osteosarcoma

    As far as histologic forms of osteosarcoma go, three varieties are often seen, according to veterinarian Jaime Modiano of the AKC Canine Health Foundation. These include fibroblastic, osteoblastic and finally, chondroblastic. Fibroblastic osteosarcoma involves mostly fibroblast tumor cells that are capable of manufacturing tumor and collagen osteoid alike. With osteoblastic osteosarcoma, tumor cells manufacture osteoid in abundance. With chondroblastic osteosarcoma, however, the tumor cells make both cartilage and osteoid.

    Osteosarcoma and Chondrosarcoma Difference

    When dogs have chondroblastic osteosarcoma, their tumor cells make cartilage and osteoid. When their tumor cells don't make osteoid and exclusively make cartilage, they have a condition that's referred to as chondrosarcoma. Chondrosarcoma is another type of canine bone cancer that expands rapidly. As with osteosarcoma, chondrosarcoma is also especially prevalent in bigger dogs. Elderly dogs are also particularly vulnerable to chondrosarcoma.

    Key Symptoms

    If you notice that your pet is showing signs of problems and discomfort walking, pay close attention to him. Lameness is a typical indication of canine osteosarcoma. Some dogs experience troubles walking gradually, while the difficulties are much more abrupt and seemingly "out of nowhere" in others. Weight loss and exhaustion also frequently denote bone cancer in affected canines. Some dogs even get conspicuous swellings on their legs, although many others do not. Aching of the joints and bones sometimes occurs, too.

    Prompt Veterinary Management

    Since osteosarcoma can be fatal to dogs, it's important to never brush off any potential symptoms of the disease. Osteosarcoma is a fierce condition and can swiftly expand throughout your pet's body. If your dog has chondroblastic osteosarcoma, your vet can analyze his situation and determine which mode of management is most appropriate for his needs. These management options include radiation therapy, chemotherapy and surgery. The goal of canine osteosarcoma management is both to slow down metastasis and get rid of the tumor. Chemotherapy and surgery often increase dogs' chances of survival greatly.

    Photo Credits

    • Dean Golja/Photodisc/Getty Images

    About the Author

    Naomi Millburn has been a freelance writer since 2011. Her areas of writing expertise include arts and crafts, literature, linguistics, traveling, fashion and European and East Asian cultures. She holds a Bachelor of Arts in American literature from Aoyama Gakuin University in Tokyo.

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