Osteosarcoma in dogs
Osteosarcoma (OSA) is the most common type of bone cancer in dogs. It most often occurs in bones bordering the shoulder, wrist, and knee. Appendicular Osteosarcoma, or osteosarcoma of the limbs, accounts for the majority of bone cancer cases. This form of cancer tends to be aggressive and frequently spreads to the lungs and other bones.
Limping, or lameness, is the most common sign of this disease
Spontaneous fractures of the bone
Swelling at the site of the cancer
The typical symptom for dogs with mandibular (lower jaw bone) and orbital site tumors (behind the eye) is dysphasia (difficulty swallowing). Dogs with cranial (skull) or vertebral tumors will present with neurologic deficits. Dogs with pelvic masses may have dyschezia (difficulty defecating) as their primary symptom.
Causes and Risk Factors
The cause of osteosarcoma in dogs is unknown. However, there are some contributing risk factors:
Osteosarcoma usually occurs in middle-aged or elderly large and giant breed dogs, particularly those who have experienced rapid growth, tend to be at higher risk, especially Rottweilers and Scottish Deerhounds.
Males tend to have a slightly higher risk of getting osteosarcoma.
Dogs that are spayed or castrated at an early age.
Historically, surgery, chemotherapy, and radiation have been the most common forms of treatment. However, targeted therapies are a more advanced treatment option. FidoCure, from The One Health Company, enables your vet oncologist to understand the exact genetic mutation causing your dog’s cancer and provide an individualized, targeted treatment plan leveraging the latest science available in oncology.