You may be wondering, how do I know if my dog or cat has oral cancer? Oral tumors in small animals can have serious health consequences that can be life-threatening if not treated promptly.
Because oral tumors typically develop quietly and quickly, early detection is a critical part of successful treatment. For pet owners, understanding the signs, diagnosis, and treatment options, including emerging therapies, can drastically impact the quality of your pet’s life.
If you are unsure of what to look for when it comes to oral tumors in dogs and cats, continue reading to find out the best tips for beating oral cancer in small animals.
What are oral tumors?
Oral tumors are abnormal growths that develop in the mouth, including the gums, tongue, lips, palate, or jawbone. It’s important to note that if your pet has a tumor, it doesn’t necessarily mean your dog or cat has cancer. These tumors may be benign (non-cancerous) or malignant (cancerous).
While benign tumors can still cause your pet discomfort or interfere with their eating habits, malignant tumors are much more aggressive and usually invade the surrounding tissues. If these cancerous tumors are not detected early, they can even spread to other parts of the body.
Common oral tumors in dogs and cats:
Dogs can develop a wider variety of oral tumors than cats, with both benign and malignant forms commonly seen.
Malignant melanoma
The most common type of oral cancer in dogs is malignant melanomas. This cancer is highly aggressive, making early detection key.
It often appears as a dark (pigmented) mass, but can also be non-pigmented. As it’s invasive, this means malignant melanomas are prone to early metastasis and can spread to the lymph nodes and lungs if it’s not detected early enough. Malignant melanomas are commonly found on the gums, lips, or tongue.
Cats develop fewer types of oral tumors, but a much higher percentage are malignant. This means that melanomas are quite rare in cats, and usually less aggressive,
Squamous cell carcinoma (SCC)
Squamous cell carcinomas are the second most common type of oral tumor in dogs. It typically appears as a red, ulcerated, or cauliflower-like mass. Key areas to check include the gums, tongue, or tonsils.
Squamous cell carcinoma accounts for 70–80% of oral tumors in cats, typically appearing as an ulcerated, non-healing lesion. It’s often associated with drooling, difficulty eating, and weight loss
Squamous cell carcinomas are locally invasive, meaning that this type of tumor can spread into bone, impacting eating and comfort. While they are less likely to metastasize early (except tonsillar SCC), it’s still important to detect this type of oral tumor early.
Fibrosarcoma
Fibrosarcoma is a malignant tumor of connective tissue. It often appears as a firm, fleshy mass and is common in younger to middle-aged dogs.
It is the second most common oral tumor in cats, appearing as firm swelling and commonly on the upper jaw. Fibrosarcoma can grow quite large before detection, making it an aggressive tumor that can have significant tissue destruction.
Early signs and symptoms of oral tumors
One of the biggest challenges with oral tumors is that they are often not noticed until it’s too late, because many pet owners have not been properly informed about the early signs! Pets are very good at hiding discomfort, so it’s important to be aware that symptoms may initially appear subtle.
Common signs include:
- Persistent (very) bad or foul breath
- Drooling or difficulty swallowing
- Bleeding from the inside the mouth
- Visible swelling or masses inside the mouth
- Loose teeth or changes in chewing behavior
- Reduced appetite or weight loss
- Pawing at the mouth or signs of pain when eating
Regularly checking your pet’s mouth and scheduling routine veterinary exams is the most effective way to prevent oral cancer in your dog or cat.
The best treatment for these hidden dangers is early detection — don’t wait until it’s too late!
Oral tumor diagnosis
If your veterinarian suspects an oral tumor in your dog or cat, they will typically recommend a biopsy to determine the type of tumor and whether it is benign or malignant.
Imaging, such as dental X-rays, CT scans, or MRIs, may also be used to evaluate how far the tumor has spread (into bone or nearby tissues). This is an important step, as diagnosis helps guide treatment decisions. It assesses the size of the tumor and whether its spread to other parts of the body.
Treatment options
The good news — even if your pet has an oral tumor, there are treatment options available. Treatment depends on the tumor type, location, and stage, as well as the overall health of your pet.
Types of treatment options for pet oral cancer:
- Surgery is often the first-line treatment, especially for localized tumors. However, in some cases, this may involve removing part of the jaw, making surgery a riskier option for many animals.
- Radiation therapy can be used alone or following surgery to target residual cancer cells. It’s particularly useful for tumors that cannot be completely removed without severely impacting the pets quality of life.
- Chemotherapy is sometimes recommended, although its effectiveness varies depending on the tumor type and what is recommended by your veterinarian.
A targeted approach: IsoPet® therapy
For certain oral tumors, especially those that are difficult to remove surgically or have recurred after other treatments, a targeted radiation approach can be the most beneficial.
IsoPet® therapy involves the direct injection of radiation into the tumor. This localized delivery allows for high doses of radiation to be concentrated within the tumor, while minimizing exposure to surrounding healthy tissue. Because the treatment is highly targeted, it can be a successful treatment option for tumors in complex anatomical areas like the mouth.
In many cases, IsoPet® is used as part of a treatment plan (for example, following surgery to target the dirty margins) or as a palliative option to improve comfort and slow tumor progression, increasing the animal’s quality of life.
Remember, when it comes to treatment options for oral tumors in your dog or cat, always be sure to consult your veterinarian to make an informed decision that aligns with your pet’s needs and your family’s goals.
The importance of early detection
We said it before and we’ll say it again, early detection is crucial for preventing oral tumors in dogs and cats.
Early detection can significantly improve the range of treatment options and potential outcomes. Incorporating oral checks into your pet’s routine care (both at home and during veterinary visits) can help identify growths sooner.
If you notice any unusual changes in your pet’s mouth or behavior, don’t wait… you could save your pet’s life through early detection!
Key takeaways
Oral tumors in dogs and cats can be complex and challenging, but advances in veterinary medicine are expanding the tools available to manage them.
From surgery and radiation to innovative targeted therapies like IsoPet®, there are more options than ever to support pets facing these diagnoses.
The information provided in this article is for educational and informational purposes only and is not intended to replace professional veterinary advice, diagnosis, or treatment. Always consult your veterinarian or a qualified veterinary oncologist regarding your dog’s specific diagnosis and treatment options.
