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Gilbert: 480-327-6690
Glendale: 623-806-7475
Scottsdale: 480-320-3119

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Pet Cryotherapy

It has long been known that some more superficial tumors can be treated by freezing the cells and killing them, a process called cryotherapy. Much like your dermatologist would freeze a wart, cryotherapy utilizes an application of liquid nitrogen to the mass to kill the cells. The masses we treat with this therapy include small hemangiomas, hemangiosarcomas and mast cell tumors. When dogs and cats spend a lot of time in the sun, they can get a form of skin cancer that shows up as small, superficial lesions that look like little blood blisters. Initially these tumors are benign (hemangiomas) but with time can progress to the malignant form (hemangiosarcoma). This cancer is most often seen in our thin-skinned dogs with Whippets, Italian Greyhounds and Greyhounds being the most often seen. Superficial mast cell tumors are most common in cats. This process generally requires anesthesia in our pets but occasionally if just one or two lesions are being treated, a local anesthetic can be used to numb the area before the treatment. The mass is typically frozen three times with a couple of minutes in between each application. Many masses can be treated during the same anesthesia event.

Side effects are usually very minimal but may include some hair loss at the site and over the 2 weeks following the treatment, a scab will form. People treated with cryotherapy tell us that for a few days after treatment, the area will be a bit tender, but our dogs and cats seem to tolerate this very well. When the scab falls off naturally over the next week, a small, hairless area is left behind. These masses are usually very responsive and are often gone before the scab comes off. This therapy only addresses the masses that are treated and does not do anything to prevent other masses from growing. Because of this and the fact that the damage from the sun occurred in the past, new masses will continue to grow and will require treatment. The frequency varies but for some pets, two treatments per year is not unusual. In most cases, if we continue to treat the lesions when they are small, we can keep the disease located in the superficial layers of the skin and prevent it from spreading and becoming a life-threatening condition. If your pet has masses or lesions on the skin, have your veterinarian take a look so your friend can stay healthy and happy!
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Client Recommendation

Dr. Venable and her staff were mentioned in a local magazine, Troon Living, when a client's dogs were selected as Troon's Pet of the Month

Congratulations to AVO for Winning Mid-Size Business of the Year

The Gilbert Chamber of Commerce announced yesterday the recipients of the 2019 Annual Business Awards and recognized Chamber leaders at a luncheon.

Individual nominees were eligible for categories including Chamber Volunteer of the Year, Foundation Volunteer of the Year, Gilbert Leadership Award, and Businessman or Businesswoman of the Year. Business nominees were eligible for categories including Employer of Choice and Large, Mid-Size, or Small Business of the Year.  


As we continue to live with COVID-19, we have an obligation to help mitigate the spread of the virus.
At each of our hospitals we have implemented additional cleaning and sanitizing procedures that meets or exceeds CDC recommendations, to include disinfecting all surfaces more frequently, especially surfaces touched by the public, such as door handles, pens, clip boards, etc. Our staff are frequently washing hands, using gloves and face masks and are avoiding touching our faces, and we encourage you to do the same. We will also not be shaking hands or hugging to prevent viral transmission.

Please do not personally come to our hospital with your pet if you or a member of your family have a fever, cough, or cold-like symptoms. Please stay home, tend to yourself and send your pet with another person who does not live in the same house to be treated. If you are ill and cannot find another person to bring in your pet, please inform us so that we can take special precautions. 

To limit exposure, call us to inform us you are here. You can also text us at that same number (480.327.6690). You can remain in your vehicle or you can exit your vehicle but stay at least 6 feet from any other persons. A technician will call you to complete the admission questions in regards to your pet and once complete, will come out to get your pet. After the doctor completes the exam, you will get another call to discuss findings or you may be asked to join via Zoom. You will need to upload that app onto your phone. We realize that this is not ideal, but we are following recommendation from the CDC. 

Our hope is to allow clients back into the facility starting June 1 at a limited compacity. And, clients will only be allowed in if wearing a face mask. If you do not have a mask, you will need to remain outside. 

We may ask you to remove the pet’s collar and leash and we will use one of ours. You will need to bring your cat in a carrier and we may ask you to transfer to a temporary one. We will not accept toys, bedding, or other personal items for your pet.

These and other protocols are in place for the safety of you, your family, and our veterinary colleagues.

Thank you for your understanding during this difficult time.

Featured Reviews

I can't recommend Dr. Boshoven and his wonderful staff highly enough. I am extremely grateful for the outstanding care my skittish ten year old cat Sandy received throughout the process of curing his hyperthyroidism via administration of radioactive iodine. Dr. Boshoven's credentials, training, and expertise are impressive. He is a good communicator and he explained Sandy's treatment plan in a clear, concise manner. His veterinary clinic is the only one in the Phoenix area that features a technetium scan which enables Dr. Boshoven to calculate a custom-tailored dosage of I-131 for each patient, ensuring optimal outcomes. I was particularly happy that Dr. Boshoven and his team were able to manage Sandy gently and very well even though he suffers from fear-based aggression related to the significant hardships he'd encountered before I adopted him. Dr. Boshoven's staff, notably Rudy and Allie, reflect the same high level of patience, professionalism, and compassion which he demonstrates. It was difficult for me to be separated from Sandy for five days, but I was comforted by the knowledge that I had left him in very good, kind hands. He came home cheerful and well, not in any way traumatized by his experiences at Arizona Vet Oncology. I am so happy that I can look forward to many more good and happy years with Sandy now that his hyperthyroidism has been cured. Dr. Boshoven and his staff are my heroes!

- Gayle A.

- Dan C.

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