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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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Cliffy
Lizzie
Micky ARP
Micky is a handsome and affectionate greyhound with a calm and gentle nature. This sweet boy loves spending time with his people, seeking eye contact and wanting to please. While he can be relaxed and quiet, Micky does have a puppyish side and likes to stretch his legs with zoomies. He also loves treats and has shown interest in bird watching and believes that backyard zoomies are more fun with a bird nearby. He is looking for a home with a secure backyard. He would suit being an only dog or he may be suitable to live with medium or large canine companions. Micky may also be suitable to live with children aged 5 and over.
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.
Michigan ARP
Michigan is a stunning girl that can be a little shy and puppyish to start but soon comes out of her shell and loves to lean on you for pats. She has beautiful eyes and will look up at you with so much love, you just won’t be able to resist her! We think she may suit a home with children that are savvy around large breeds and over 10 years, she may also suit living with another male companion of any size.
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.
Uganda ARP
Are you looking for a quiet and sweet girl? Uganda might be the one for you! She can be a little shy when she first meets you but doesn’t take long to warm up. She is quiet and really wants to please her owners. She may suit living with children in their teens but would prefer to find a home with a canine companion of any size.
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.
Bones
Pedro ARP
Pedro is a friendly, outgoing and confident greyhound with a big personality and an even bigger heart. Affectionate and personable, he loves spending time with his people and is always happy to make new friends. One of Pedro’s favourite things in the world is a good butt scratch, and he'll happily lean in for more when he finds the perfect spot! With his easy-going nature, Pedro may suit a home either as an only dog or with a medium to large canine companion. He could also thrive in a family with respectful children aged 10 years and over who are keen to share plenty of love, attention and cuddles with this charming boy.
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.
King ARP
Kingis a handsome, friendly and incredibly personable greyhound whose goofy, larger-than-life personality is guaranteed to keep his family smiling. This tall, affectionate boy loves being part of the action and has a playful, puppyish side that shines through in his hilarious zoomies and quirky antics. While King can be a little anxious at times, he always tries his best and gains confidence with patient support from the people he loves. Full of character, charm and plenty of goofy moments, King may suit a home with or without a medium or large canine companion and could do well with respectful children aged 10 years and over who will appreciate his fun-loving spirit and kind heart.
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.
Bruno ARP
Bruno is a handsome greyhound with a gentle soul and a heart full of affection. Quiet, polite, and incredibly sweet, he enjoys spending time with his people and wins friends wherever he goes with his calm, personable nature. Bruno is confident in many situations, but like many greyhounds, he can occasionally be a little unsure and looks to his trusted humans for reassurance and support.
Friendly and easy-going, Bruno may happily settle into a home as an only dog where he can soak up all the attention, or he may enjoy living alongside another dog of any size. His kind and gentle temperament also makes him a lovely companion for families with children aged 5 years and older. If you're looking for a loyal, affectionate friend with plenty of charm, Bruno could be the perfect match.
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.
Flashy