Eddie Garcia, D.V.M. – Clinic Director at Veterinary Medical Clinic
Cancer is the ungoverned growth of cells on or within the body. The terms “cancerous” and “malignant” are synonymous. The term “tumor” refers to a cancerous local growth. Tumors are characterized by rapid growth and local invasion into surrounding tissues. Tumors may also metastasize, that is spread through the bloodstream or lymphatic system to distant sites within the body. The lungs are a very common site for tumor metastasis. The prognosis for tumors is often most dependent on whether they have metastasized prior to the diagnosis.
Many signs of illness would prompt a suspicion of cancer among a host of other problems.
Cancer warning signs include foul odor, persistent lameness, difficulty urination or defecating, abnormal growth, weight loss, bleeding, wounds that won’t heal, difficulty breathing, weakness and lethargy.
Fatigues is definitely a sign to watch out for that most people might miss.
To catch the disease in the early stages, dog & cat owners need to be alert to changes in their pet’s behavior and seek medical care as soon as possible. By the time cancer is discovered, it can be fairly advanced, and a cure isn’t always possible.
There are no preventive measures to ensure your dog doesn’t get cancer, but spaying before the first heat will almost completely remove the risk of mammary cancer. Testicular tumors in dogs are common, but when dogs are neutered, the risk is eliminated.
Breeds at Risk
Certain breeds seem more susceptible to inherited types of cancer. In some forms of cancer, body type is also important. Larger or giant breeds have a higher incidence of bone cancer. Dogs with dark skin are more susceptible to melanomas.
Golden Retrievers and Rottweilers are at risk for lymphoma and osteosarcoma. Scottish Terriers and Shelties are susceptible to bladder cancer. Bernese Mountain dogs tend to contract lymphoma, mast cell tumors and histiocytosis, a rare cancer, which oncologists treat with chemotherapy and radiation.
Cancer is not one disease, so the breed and cancer associations are endless.
Today cancer is now one of the most common causes of death in pets.