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Portland Veterinary Specialists has been invited to represent the veterinary community by having a booth at The Dempsey Challenge for the fifth consecutive year. We are excited to share the advances in the field of veterinary oncology and convey our commitment to our clients and patients.

PVS has a large team competing in the event. If you would like to make a donation to the PVS team in honor of your pet, please go to, click on the “donate now” button, and choose team “Canine Cancer Crusaders”.

The Dempsey Challenge is a run, walk and cycle fundraising experience for The Patrick Dempsey Center for Cancer Hope & Healing in Lewiston, Maine, and soon to be in South Portland, Maine.

One-hundred percent of funds raised by Dempsey Challenge participants directly benefit the Dempsey Center, allowing them to provide free support, education and integrative medicine services to anyone, human or companion animal, impacted by cancer.

More than just a fundraising event, the Dempsey Challenge also includes a free, family-friendly Festival in the Park, Kids’ Fun Run, Survivor Walk and community celebration.

For more information:



Inspired by advances in human cancer treatment, a new monoclonal antibody (MAb) therapy is available for the treatment of lymphoma in dogs. Developed specifically for dogs with lymphoma, canine MAb therapy is an innovative treatment that’s designed to target and kill lymphoma cells. Portland Veterinary Specialists is now accepting patients for this new conditionally licensed therapy.

To learn more about MAb technology, visit, or email Dr. Jeffrey Philibert at

Veterinarians, to enroll you patients, please call 207-780-0271.