What Are the Common Types of Dog Tumors Your Pet Might Have?

A vet team understands the repercussions it brings to discover that your dog is suffering from cancer, as canines are beloved members of our family and often our closest friends. While most people don’t want to think that their dog might be in a state of illness, knowing the types of canine cancer could help you catch the condition early when the treatment is most effective.

Some canine tumor varieties are treatable. They are typically local aggressive tumors that are eliminated surgically. Unfortunately, there’s no treatment for cancers that extend to other areas of the dog’s body or metastasize.

It is vital to gather as many details as possible after discovering that your pet is suffering from cancer before making any decision. Consultation with a veterinarian oncologist can help clarify possibilities of the results and what to be expecting for your dog. They can discuss different options for treatment and what they will mean to your pet’s longevity and overall quality of life.

Dog Tumor Types

In comparison to human cancers, canine tumors are treated differently. Talking to your veterinarian for information on the characteristics of each type of cancer in dogs is crucial because different tumor types are classified differently.

Mast Cell

Mast cells are cancerous tumors that form in the dog’s skin’s mast cells. Immune system cells are typical mast cells. They are responsible for allergic reactions such as hives and insect stings.

Mast cell tumors may have many forms, such as simple cysts or zits. They also have the capability of mimicking benign tumors such as lipomas.


Lymphocytes, also known as white blood cells, give birth to cancer known as lymphoma. A vital component of the immune system of a dog is the normal lymphocyte.

Complex, large lymph nodes, usually situated around the jaw, in front of the shoulder, or behind the knees, are a common sign of lymphoma. Lethargy or a lack of interest in food are other manifestations.


The fat cells can lead to benign growths called lipomas. They typically occur in the fatty layer of subcutaneous fat under a dog’s skin.

Lipomas are extremely common and can grow to be quite large. They are usually a problem with appearance (pet parents might not appreciate how a lumpy, bumpy puppy looks). Still, they may create issues if they are situated in the wrong location. Liposarcoma is the term used to describe this malignant tumor’s rare variant. Consult a veterinarian for any dog teeth problems your pet might have.


One type of cancer that is derived from bone cells is osteosarcoma. Osteosarcomas can cause limb swelling, bone fractures, swelling, and lameness. They are frequently painful.

Large dog breeds including Boxers, Golden Retrievers, German Shepherds, Great Danes, Great Pyrenees, Greyhounds, Labrador Retrievers, and Rottweilers are most often affected by osteosarcoma.


The benign tumors originate from histiocytes that reside in the skin. Histiocytes are an immune cell subtype that aids in the fight against infection. In a matter of weeks, they will usually disappear and heal independently.

For puppies, histiocytoma can be frequent in puppies. These may be found with any dog breed, but the most prevalent ones are Labrador Retrievers. Boxers, Shar Peis, Bulldogs, American Pit Bull Terriers, Staffordshire Terriers, and Scottish Terriers. Consult a veterinary specialist for any dog surgery details you need.


The benign tumors referred to as papillomas, or warts, are brought on through the canine papillomavirus. They typically form on the tongue, lips, throat, or gums. However, they can also arise in other places and are prevalent among dogs who play in dog parks, playgroups for dogs, or daycares.

Since the virus is a specific species and is not a threat to you or any other sort of animal in your home may contract it. Papillomas generally disappear entirely on their own within just a few weeks. Visit a veterinary website; see on their home page for additional information.