Common Types of Tumors Your Pet Dog Might Have

A veterinary team knows how difficult it is to discover your dog is suffering from cancer, as canines are beloved members of our family and often our closest pals. Although no one wants to think about the possibility of their pet being sick, being aware of the different types of canine cancer might help you recognize the illness early, which is when treatment is most effective.

Some canine tumor varieties can be treated. They are typically local aggressive tumors that are removed surgically. Unfortunately, there’s no cure for cancers that spread to other areas of the dog’s body or that metastasis.

Gathering as many details as possible after being informed that your pet has cancer before taking action is vital. Consultation with a veterinarian oncologist can help you understand the potential outcomes and what you should expect for your pet. They will be able to discuss various options for treatment and what they entail for your pet’s life span and quality of living.

Dog Tumor Types

In comparison to human cancers, canine tumors are handled differently. It’s crucial to consult with your veterinarian to know the types of each specific canine cancer type because different types of tumors are classified differently.

Mast Cell

Mast cells are cancerous tumors that develop within the skin of a dog’s mast cells. Immune system cells are akin to mast cells. They trigger allergic reactions like hives and insect stings.

Mast cell tumors have different appearances, like a common cyst or zit. They can also be capable of imitating benign tumors like lipomas.


Lymphocytes, or white blood cells, give birth to the malignant form of cancer called lymphoma. An essential component of the immune system of dogs is a normal lymphocyte.

Complex, large lymph nodes, usually situated on the jaws on the front of the shoulder or behind the knees, are a standard marker of lymphoma. Apathy or a lack of desire to eat are also symptoms.


Fat cells can give rise to benign tumors, known as lipomas. They’re usually found in the fatty layer immediately under the dog’s skin or the skin fat.

The number of lipomas is high and may reach quite huge. They usually affect appearance (pet parents may not like a pup’s lumpy, bumpy appearance). However, they may create issues when placed in the wrong place. Liposarcoma is the term used to describe the more rare malignant variant. Visit a veterinary clinic for cat teeth cleaning services.


One form of cancer that develops from bone cells is known as osteosarcoma. Osteosarcomas cause swelling in the limbs, bone fractures, and lameness. They are usually painful.

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


The benign tumors are formed from histiocytes on the skin. Histiocytes are an immune system cell type that assists in the fight against infection. Within a few weeks, they will usually disappear and heal independently.

When puppies are born, histiocytoma can be frequent in puppies. They can be found in 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 surgeon for any surgeries your pet might need.


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

Since the virus is a specific species, neither you nor any other animal living at home could contract it. Papillomas usually disappear without a trace in several weeks. You can read about this on a veterinary website.