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Bone Cancer (Osteosarcoma)
Osteosarcoma (bone cancer) is the most common type of cancer that affects the bones of dogs.
This cancer gradually eats away at the healthy bone tissue, leaving weaker, damaged bone which can break easily, even with normal activity. Affected dogs may have a noticeable hard swelling at the site of the cancer, or may simply go suddenly lame, almost overnight.
Bone cancer is mostly seen in larger breeds of dog with Greyhounds being the breed diagnosed most with this disease, followed by Rottweilers and Great Danes. Although most common in older greyhounds, the disease has no real age limits and can be seen in dogs of racing age, as well as in brood bitches and retired racers kept as pets. The risk of developing this disease increases with age, and one study in the UK found it accounted for almost 50% of all tumours seen in greyhounds.
Where is it commonly seen?
The most common sites for bone cancer to develop in the front leg are the shoulder and just above the wrist. In the hind leg the cancer tends to occur just above or below the knee/stifle.
The owner often reports that the dog has gone lame, and the area will often be swollen and painful to touch. Because it can appear so quickly, often owners assume the dog has simply hurt itself in the yard, or while exercising or playing with other dogs. The location of the swelling, amount of pain, and the appearance of the bone on x-ray are used to diagnose this disease. X-rays often show an area of bone that is very different from the normal bone above and below it, with a distinctive appearance described as ‘moth eaten’. Sometimes on x-ray it is also possible to see ‘pathologic’ fractures (breaks in the abnormal bone) which are the cause of a lot of the pain.
Confirmation of the diagnosis can be achieved via a bone biopsy or fine needle aspirate – where some of the cells from the affected area are removed and sent for examination by a pathologist.
What can be done if my greyhound has been diagnosed with Bone Cancer?
Unfortunately bone cancer is usually a very aggressive and nasty disease and malignant cancers can spread from their initial location to other places in the body such as the liver and lungs. Osteosarcoma is a type of cancer that spreads very early in the disease, often well before any signs or symptoms from the original tumour are visible.
Given this early spread, most dogs diagnosed with this disease have a very poor prognosis. It is estimated that most dogs will have a life expectancy of only a few months from the time of diagnosis. Treatment options include pain relieving medication, amputation of the affected limb, chemotherapy and radiotherapy.
Amputation of the affected limb is primarily done to control the pain associated with the area, and does not ‘cure’ the cancer. Without amputation, pain relief may work for a short time, but usually an inability to control the pain leads to the owner deciding to euthanase the greyhound. Greyhounds usually cope quite well with amputation, even though it seems to be a very drastic option. Amputation of the affected limb can increase the life expectancy from just weeks to an average of 4-6 months.
Chemotherapy is aimed at slowing the spread of the disease into other organs. Many owners do not consider chemotherapy because of the cost involved and the concern that their greyhound will suffer similar side effect to human chemotherapy patients (such as nausea and vomiting). Interestingly dogs are far less likely to suffer these types of reactions to the chemotherapy medication, and new chemotherapy drugs continue to be developed which are safer, more effective, and reduce the risks of unpleasant side effects.
Amputation followed by chemotherapy gives the best life expectancy, but the average survival time with this option is still only 10-12 months. If you are concerned that your greyhound has gone suddenly lame, especially if it is an older dog, it is important to have the dog checked by your veterinarian. They will be able to diagnose the problem, and discuss all of the available options and their likely outcomes with you so that you can make an informed decision.
Meet our dogs ready for adoption
All greyhounds adopted from GAP are de-sexed, vaccinated, microchipped, wormed and health checked.
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Rocky ARP
How pretty is Rocky? He has the whole world in his paws with hat adorably cute head tilt! Rocky is a very friendly, outgoing and confident boy who loves treats and is happy to hang out with his people. He can be enthusiastic at times when playing with other dogs so he may be better suited to a home with a robust medium or large canine companion, or may even suit living as an only dog. He may be happy living with children aged 10+ and full time workers.
This dog is part of our Assisted Rehoming Program (ARP). ARP dogs are kept with their racing owners until they find an adoptive home, at which point they are brought back into GAP. This means that should you be interested in adopting this dog, we are bringing the dog into GAP on the understanding that you will be adopting them. As such, you will not be able to meet any other dogs, as you otherwise would be able to.
Paddy ARP
Meet Paddy, a handsome male greyhound with a polite, gentle manner and a friendly, personable nature. He is a calm and thoughtful boy who enjoys human company and greets everyone with quiet charm. Paddy is affectionate without being demanding and has a lovely way of making people feel at ease, whether he’s leaning in for a pat or simply relaxing nearby. His easygoing temperament makes him a pleasure to have around.
Paddy would be well suited to a home with adults, elderly adopters, or families with children aged5 and over who can interact with him kindly and respectfully. He can live happily as an only dog or with a compatible medium to large canine companion.With his calm energy and good manners, Paddy may also suit apartment living,provided his exercise and comfort needs are met. He’s ready to settle into a loving home where he can relax, enjoy companionship, and be cherished.
This dog is part of our Assisted Rehoming Program (ARP). ARP dogs are kept with their racing owners until they find an adoptive home, at which point they are brought back into GAP. This means that should you be interested in adopting this dog, we are bringing the dog into GAP on the understanding that you will be adopting them. As such, you will not be able to meet any other dogs, as you otherwise would be able to.
Josie ARP
Josie’s has just come back from a vacation far away and ready to settle into her new forever retirement home! We think she may suit living with other male dogs medium or larger and children 10 and over. She may also suit living as an only dog and with full time workers.
This dog is part of our Assisted Rehoming Program (ARP). ARP dogs are kept with their racing owners until they find an adoptive home, at which point they are brought back into GAP. This means that should you be interested in adopting this dog, we are bringing the dog into GAP on the understanding that you will be adopting them. As such, you will not be able to meet any other dogs, as you otherwise would be able to.
Bessie ARP
Little brindle gal Bessie is now in the market for her new forever home! She isn’t really fussy about what she needs as she is a quiet, easy going and sensible little lady but she would love some people to dote on her till the end of her days at the very least. We think she may suit homes with children 10 and over and maybe another male canine companion of any size. She may even like to live in an apartment or with an elderly person! Like we said, she is pretty easy going!
This dog is part of our Assisted Rehoming Program (ARP). ARP dogs are kept with their racing owners until they find an adoptive home, at which point they are brought back into GAP. This means that should you be interested in adopting this dog, we are bringing the dog into GAP on the understanding that you will be adopting them. As such, you will not be able to meet any other dogs, as you otherwise would be able to.
Winx ARP
Meet Winx, a beautiful female greyhound with a calm, polite nature and a heart full of sweetness. She is gentle and personable, taking her cues from the people around her and doing her very best to please. Winx can be a little anxious in new situations, but reassurance and kind guidance go a long way—once she settles, her affectionate and thoughtful personality truly shines. She enjoys quiet companionship and will happily be by your side, soaking up the comfort of a predictable routine.
Winx would do well in a home with adults, elderly adopters, or families with children aged 10 and over who can respect her sensitive side. She would be happiest as an only dog, or with a compatible medium to large canine companion who matches her calm energy. With patience, love, and a peaceful home, Winx will reward her people with loyalty, grace, and a gentle presence that makes every day a little brighter.
This dog is part of our Assisted Rehoming Program (ARP). ARP dogs are kept with their racing owners until they find an adoptive home, at which point they are brought back into GAP. This means that should you be interested in adopting this dog, we are bringing the dog into GAP on the understanding that you will be adopting them. As such, you will not be able to meet any other dogs, as you otherwise would be able to.
Jett
Nero
Missy
Abby
Fab