The mission of the Harrington Oncology Program is to provide the highest quality care for companion animals with cancer.


Radiation oncology came to the rescue of a rescue black Lab with anal sac adenocarcinoma, which is similar to rectal cancer in people.



There was something different about Truffle and Karen Foster and her daughter, Ruth, recognized it right away.

Linear Accelerator


Imagine a very sweet 14-year-old chocolate lab “who shuffles around and looks like he’s a hundred.”

Yellow lab in oncology


Comprehensive care for a dog with cancer includes access to an innovative clinical trial


The mission of the Harrington Oncology Program is to provide the highest quality care for companion animals with cancer. This is accomplished by integrating state-of-the-art diagnostic, medical, radiation therapy and surgical techniques.

The oncology service is led by board-certified specialists in medical and radiation oncology and is supported by a team of residents, dedicated technicians and staff. We work closely with a highly skilled surgery service, with expertise in surgical oncology, as well as with specialists in internal medicine and a variety of other services. This close collaboration allows us to offer options for treatment that are tailored to the individual patient, according to the tumor type, the particular health of the patient and the family's expectations. This could be either a comprehensive treatment plan that includes a combination of different therapies or a more conservative strategy focusing on palliative care.

The radiation oncology service boasts a sophisticated linear accelerator (Siemens Primus linear accelerator with 6MV photon and 6-21 MeV electron capabilities. This unit has a 56-leaf collimator that allows for intensity modulated radiation therapy). This is only one of a few such units in operation in veterinary medical establishments. Strontium plesiotherapy is also available.

The Harrington Oncology Program is recognized nationally as a leader in the field. The members of the service are engaged in ongoing research into the causes, biology and treatment of cancer, including environmental risk factors for cancer and novel cancer therapies.

  • Technicians experienced in chemotherapy administration, radiation therapy delivery and anesthesia
  • Intravenous, intralesional and intracavitary chemotherapy administration
  • Long continuous-rate infusions of chemotherapy (cisplatin, ifosfamide, dacarbazine, cytarabine) and amino bisphosphonates (pamidronate, zoledronate)
  • Ultrasound guided and manual needle-core (True-cut) biopsies
  • Incisional and punch biopsies
  • Bone marrow aspirates and biopsies
  • Melanoma vaccine administration
  • External beam radiation therapy with a 6MV linear accelerator with multileaf collimator and variable electron energies (range 6-18 MeV)
  • Intensity modulated radiation therapy capability
Advanced Techniques
In the News

Work being done at Tufts is helping to advance the field of comparative oncology, which looks at how cancer behaves and is best treated in people and other species. Video: Steffan Hacker - See more at Tufts Now

Our doctors

  • Lisa G. Barber

    Lisa G. Barber
    Oncology, Chemotherapy

  • Laura E. Barrett

    Laura E. Barrett

  • Kristine E Burgess

    Kristine E Burgess

  • Molly Holmes

    Molly Holmes
    Radiation Oncology

  • Michele A.  Keyerleber

    Michele A. Keyerleber

  • Kelly Kezer

    Kelly Kezer
    Small Animal Oncology

  • Elizabeth McNiel

    Elizabeth McNiel