Cancer is the leading cause of death in companion animals over age 10. Early detection and treatment may result in a better prognosis and quality of life for your pet.

There are many different types of cancer that can affect pets, and likewise, a wide variety of treatment options. Obtaining an accurate diagnosis and comprehending the scope of your pet’s illness are the essential first steps to decide which treatments will offer the best outcome for your pet and family.

Working closely with your regular veterinarian, our highly experienced oncology experts—Dr. Claire Weigand, DACVIM, and Dr. Amanda Gerard, Internal Medicine Specialist—will help you understand your pet’s condition, guide you to make the best diagnostic decisions, and support your family throughout the treatment process. Their efforts utilize the specialized resources available at VESH, as listed below.

Advanced diagnostics by referral:

  • Digital X-ray
  • CT Imaging
  • Ultrasound
  • Biopsy
  • Fine-needle aspirate cytology

Medical oncology treatments:

  • Chemotherapy
  • Immunotherapy
  • Pain management
  • Palliative Care


If your pet has been diagnosed with cancer, ask your regular veterinarian for a referral to VESH’s veterinary oncology department or call our specialty services scheduling department at 413-665-4931.

Before your appointment, please complete our Patient Appointment Information Sheet and bring it with you when you meet with Dr. Weigand or Dr. Gerard.



Dr. Claire M. Weigand, DACVIM

Dr. Claire M. Weigand, DACVIM

Diplomate, American College of Veterinary Internal Medicine

A key member of the VESH team since 2007, Dr. Weigand graduated from Auburn University’s College of Veterinary Medicine, completed her internship at Purdue University, then returned to Auburn for her residency. After holding faculty positions at Atlantic Veterinary College and Mississippi State University, she moved to New England in 1999 and became board certified by the American College of Veterinary Internal Medicine in 2000. With a love for both cats and dogs, Dr. Weigand shares her home with several of each! When not attending to her cats’ needs and demands, she enjoys snowshoeing, skiing, kayaking, and water training with her Newfoundland dogs

Dr. Amanda Gerard

Dr. Amanda Gerard

Small Animal Internal Medicine

Dr. Gerard joined VESH in 2017, following her residency training in Small Animal Internal Medicine at Atlantic Veterinary College, University of Prince Edward Island in Canada. She graduated from Iowa State University of Veterinary Medicine in 2013 and consequently completed a rotating internship in small animal medicine there. Dr. Gerard has experience managing small animal internal medicine cases, as well as extensive experience in oncology and medical neurology.

Learn More

Visit the American College of Veterinary Internal Medicine web site to learn more about this area of specialization and about the advanced education and training specialists like Dr.Weigand receive in order to become board certified internal medicine specialists.