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Common Types Of Cancer In Dogs

Source: Canine Cancer


Lymphoma: Lymphoma is one of the most common cancers seen in dogs.  Although there are breeds that appear to be at increased risk for this disease, lymphoma can affect any dog of any breed at any age. It accounts for 10-20% of all cancers in dogs.

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Mast Cell Tumors:  Mast cells are specialized cells that are normally found throughout the body and help animals respond to inflammation and allergies. Mast cells can release several biologically active chemicals when stimulated which include histamine, heparin, seratonin, prostaglandins and proteolytic enzymes. Although these chemicals are vital to normal bodily function, especially immune response, they can be very damaging to the body when released in chronic excess.

More on Canine Mast Cell Tumors

Osteosarcoma (Bone Cancer):

Osteosarcoma (OSA) accounts for only approximately 5% of all canine tumors, but is by far the most common bone tumor of the dog.  It is a malignant tumor of the bone and can develop in any bone, but most often occurs in bones bordering the shoulder, wrist and knee. Osteosarcoma of the limbs is called appendicular osteosarcoma andaccounts for 75-85% of the cases of bone cancer. However, these tumors can also affect the axial skeleton (cranium, spinal column, ribs).

More on Canine Osteosarcoma


For more canine cancer information and for cancer types not seen here, go to


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