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Dog lymphoma

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Lymphoma is a relatively common cancer in dogs, but in most cases it is treatable. Most types of dog lymphoma respond well to a combination of conventional treatment – such as chemotherapy – and some type of immunomodulatory (immune-boosting) therapy, such as K9 INU®.

Among otherwise healthy dogs, lymphoma carries one of the highest chances of recovery compared to other cancers. Up to 50% of dogs with lymphoma can achieve complete remission.

What is lymphoma (lymph node cancer in dogs)

What is lymphoma in dogs?
Lymphoma is a cancer of the lymphatic system in which lymphocytes multiply abnormally. It most commonly affects the lymph nodes, spleen, liver, and bone marrow, but it can develop in almost any part of the body.
dog lymphoma

source: vet.purdue.edu

The lymphatic system is often referred to as the body’s ‘second’ circulatory system. It consists of a network of vessels, channels, lymph nodes, and lymphoid organs spread throughout the body. Its main function is to circulate lymph, which contains lymphocytes – the white blood cells that destroy invading microorganisms and foreign substances.

Organs of the lymphatic system filter out invaders from the lymph and prevent them from spreading. The lymphatic system, or lymphocytes, is actually the body’s primary defense against infection.

In healthy dogs, these cells (lymphocytes) are formed in the bone marrow, go through a life cycle of approximately 30 days, then die and are either absorbed or eliminated with the waste products.

In lymphoma, the lymphocytes start to behave like cancer cells, not dying sufficiently or growing and dividing uncontrollably.

Abnormal lymphocytes accumulate in the lymph nodes, causing swelling. Because lymphocytes are present throughout the entire body, lymphoma can develop not only in the lymph nodes but also in other organs. The most common sites are the spleen and bone marrow, but lymphoma may also occur in the stomach, liver, or more rarely, the brain. In many cases, the disease affects several organs at the same time.

Symptoms of dog lymphoma (lymph node tumor)

The symptoms of lymphoma are related to the location of the tumor(s) within the body. Lymphoma is generally characterized by a high white blood cell count, swollen lymph nodes, and lethargy. Depending on the tumor’s location, symptoms may include loss of appetite, vomiting, diarrhea, weight loss, or shortness of breath. Additional signs can be muffled heart sounds, itchy red bumps, boils on the skin, or in the mouth.

Main symptoms of lymphoma in dogs:

  • Swollen lymph nodes (e.g. under the jaw, in the armpits, groin, behind the knees)
  • Loss of appetite, weight loss, lethargy
  • Vomiting, diarrhea, shortness of breath
  • Lumps, sores or red bumps on the skin or in the mouth

Lymphoma is a serious and unfortunately quite common disease in dogs. Some breeds are more prone to it than others. The golden retriever, for example, is particularly prone to this type of dog cancer.

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Cancer is often the result of an immune system dysfunction.

Dog lymphoma and immunomodulatory therapy

Lymphosarcoma (lymphoma) develops when the immune system fails to recognize abnormal lymphocytes as invaders and allows them to proliferate unchecked.

Traditional Asian medicine, and more recently modern medicine, have used natural compounds in cancer treatment. Their task is to correct improper immune system functioning.

Immunomodulatory compounds stimulate the immune system to recognize abnormal cells and mount an appropriate immune response. This process helps the body ‘re-learn’ how to destroy cancerous cells.

Immunomodulatory agents are not the same as conventional anti-tumor drugs such as chemotherapy!

Why is immunomodulatory therapy important in dogs with lymphoma?

  • Helps the immune system recognize cancerous cells
  • Supports the effectiveness of chemotherapy and surgery
  • Reduces the risk of relapse
  • Contributes to longer survival and better quality of life

Chemotherapeutic agents

are toxic and their job is to destroy cancer cells. They are very useful in the fight against cancer because they significantly reduce the number of degenerated cells in the body, but they do not address the root cause of why the body has allowed them to proliferate.

In contrast, immunomodulatory agents

are non-toxic, their main active ingredients being naturally occurring compounds (in our food) called heteropolysaccharides, which are needed by all mammals for proper immune function.

Treatment options for lymphoma in dogs

Chemotherapy for dog lymphoma

The primary treatment for lymphoma in dogs is chemotherapy. As this type of tumor is most likely to attack otherwise healthy young and middle-aged dogs, they are usually better able to tolerate aggressive chemotherapy. Of course, several factors largely determine the outcome of the treatment, including the size of the tumor area, the extent of any metastasis, and the major organs involved. Surgeons usually remove the affected lymph node, although the effectiveness of this procedure alone remains debatable. After surgery, they typically administer some form of chemotherapy to target any remaining tumor cells. Surgery and chemotherapy are effective in removing most of the tumor, but this is only half of the healing process. These interventions do not cure the cancer, they do not correct the immune system dysfunction that allowed the tumor cells to develop.

When surgery and chemotherapy remove most of the tumor cells causing damage, the dog’s condition improves significantly. Adding immunomodulatory therapy (K9 INU® and K9 INUFactor®) activates the immune system. This combination greatly increases the chances of beating lymphoma and living a normal life.

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Immunomodulatory therapy

Strengthening the immune system is essential in cancer (Dog Lymphoma, Osteosarcoma, Mastocytoma, Hemangiosarcoma, Mammary tumor, etc.) or any other disease resulting from an immune disorder! Until the body reacts to the disease on its own, there is no real cure, only symptomatic treatment.

Therefore, many veterinarians emphasize that while treatment may extend a dog’s life, the tumor often remains.

This type of cancer (lymph node tumor) responds very well to the combination of chemotherapy and immunomodulatory therapy!

How well a dog responds to immunomodulatory therapy is difficult to generalise.  The success of the treatment depends on a number of factors, such as the age of the dog, diet, medical history, location and extent of the tumor and which organs are affected.

In general, the earlier a diagnosis is made, the better the chances. Lymphoma most often occurs in middle-aged to older dogs. If detected in time, immunomodulating agents, in addition to conventional treatments, provide the best chance for recovery and prevention of recurrence.

The role of diet in dog cancer

Cancer is one of the most common causes of death in dogs. Many experts believe that the main reason for this is an improper diet. We usually feed our pets foods based on cereals, even though dogs do not naturally graze on wheat fields. Dogs do not have the enzymes to digest and utilise grain. They are basically carnivores!

When a carnivorous animal eats a grain-based diet, its body does not get (or cannot process and utilise) the nutrients it needs, there is a high risk of immune disorders, including cancer.

If inappropriate diet is indeed one of the main causes of cancer, then it is clear that a good diet is essential for dogs with cancer. In fact, proper diet is one of the most important factors in successful cancer treatment! To really give our dogs everything they need to fight cancer, we need to provide them with the right nutrients. Just because a dog food is expensive, highly recommended or has a trendy name, doesn’t mean it’s the best for a dog with cancer. For more information, read our article FEEDING A DOG WITH CANCER.

If your dog has been diagnosed with lymphoma, consult your veterinarian for the best treatment plan, and support your pet’s immune system with natural supplements to improve quality of life. 

Worried about your dog’s health?

Learn more about our natural immune-boosting supplements to support your dog’s recovery from lymphoma.

Click here if you want to read more about the symptoms of dog cancer or the connection between cancer and medicinal mushrooms.
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