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Medical Oncology


Why does my pet need to see a Board-Certified Veterinary Oncologist?

Medical Oncologists have a specialized knowledge and a high level of experience to provide the most innovative and compassionate care for your pet. Oncologists focus on diagnosing and managing cancer. At VSNT, we pride ourselves in our ability to treat the whole patient in the best possible manner through a team of dedicated specialists and technicians committed to caring for your pet with cutting-edge therapy and loving attention.

What should I expect during the visit with the Board-certified Veterinary Oncologist?

The Oncologist will perform a complete and thorough physical examination on your animal, and based on these initial findings, additional tests and treatment options will be discussed. Depending on your pet’s condition, diagnostic testing or management may include:

24/7 Comprehensive Care

VSNT provides round the clock professional care to our hospitalized patients. Our trained staff monitors each patient, even after hours, and keep our doctors updated as necessary. By offering 24-hour care, VSNT is better able to maintain the continuity of the patient’s care while a severe illness is being addressed.

Experienced and Compassionate Care Team

Each case at VSNT is managed by a highly trained Diplomate of the American College of Veterinary Internal Medicine or Radiology. VSNT could not provide the care our patients need without the experience, dedication, and compassion provided by our staff.

Team Approach with Other Specialties

VSNT offers a custom-tailored treatment plans for each pet. Our unique team approach with other specialty team members including Medical Oncology, Radiation Oncology, and surgical services through Dallas Veterinary Surgical Center (located in our building) means your pet will receive the absolute best care.

When should you request a referral to an ACVIM Board-certified Veterinary Oncologist?

Medical oncologists commonly treat the following types of tumors:

(not an all inclusive list)

Lymphoma (lymphosarcoma, LSA)

Lymphoma is a common tumor in dogs and cats. It is a malignant tumor of white blood cell origin. Normally, lymphocytes help fight infections by bacteria, viruses, and fungi as well as help our bodies prevent cancer. When the lymphocytes become cancerous, they are able to spread all over the body. Lymphoma commonly causes enlarged lymph nodes, and can be in all the major organ systems.

Mast cell tumors (MCTs)

Mast cell tumors are also fairly common tumors. They also originate from cells of the immune system. Mast cells are commonly found in allergic conditions. Evolutionarily, we suspect that mast cells were involved in immunity against parasites. These cells can become cancerous and make lumps or nodules in the skin, as well as occur in organs such as the spleen, liver, and bone marrow to name a few.


Melanoma is a malignant cancer of the pigment-containing cells (melanocytes) in the body. These tumors usually occur in the skin or mouth, and are often black in color. They can sometimes be other colors (amelanotic melanomas), so the color is not necessarily a conclusive diagnostic aid!


Hemangiosarcomas are tumors of blood vessel origin. These tumors are extremely aggressive and may result in severe bleeding and death before you even know a patient has one. They tend to occur in internal organs such as the spleen, liver, and heart, but may also grow on the skin.

Transitional cell carcinoma

These tumors occur in the urinary tract, where they often cause blood in the urine (hematuria) or difficulty urinating (stranguria). They can also result in blockage of the urethra.