• The one and only cancer center offering the newest CyberKnife technology for pets 844-PET-CYBR (844-738-2927)

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    Meet the Doctors

    Radiation Oncology

    Siobhan Haney VMD, MS, DACVR (RO), MBA

    DSC_2736-2Dr. Haney is the first board-certified veterinary radiation oncologist to practice in Chester County, PA.  She graduated from the University of Pennsylvania with a VMD in 2004.  She received a BS from The George Washington University.  She attended Rutgers University in Camden, NJ for the completion of an MS in Biology, and in 2014 she obtained a masters degree after completing the Executive MBA program at the Pennsylvania State University.  After completing a medical and surgical internship at Red Bank Veterinary Hospital, she completed a residency in Radiation Oncology at Tufts University and became board-certified by the American College of Veterinary Radiology (Radiation Oncology) in 2008. She has been practicing Radiation Oncology at Red Bank Veterinary Hospital since 2007, joined Hope VS in the spring of 2013.  She’s been with VC3 since day one.

    Dr. Haney and her dog Poppie

    Dr. Haney has lectured both nationally and internationally on various radiation oncology subjects and has more experience treating pets with stereotactic radiation therapy than most other veterinarians in the United States. She has authored/ coauthored several scientific studies in multiple peer-reviewed journals, serves on review committees for newly written studies and actively participates in ongoing multi-institutional clinical trials.  She has presented scientific research at the annual Veterinary Cancer Society meeting and is an active member of the Veterinary Radiation Therapy Oncology Group. Her professional interests include palliative care/ quality of life for cancer patients and novel/ emerging treatments in stereotactic radiotherapy.

    Professional Memberships and Associations

    American College of Veterinary Radiology (ACVR)

    Veterinary Cancer Society      

    Dr. Cassandra Wilcox, DVM, DACVR (RO)

    A native of southern California, Dr. Cassie Wilcox graduated from the University of Tennessee College of Veterinary Medicine in 2014. She then completed a rotating medical & surgical internship at VCA West Los Angeles Animal Hospital and a residency in Radiation Oncology at the University of California, Davis.  She is a Diplomate of the American College of Veterinary Radiology, certified in Radiation Oncology.

    Her professional interests include improving patient comfort and palliative care.


    Treatment of a Facial Myxoma in a Goldfish (Carassius auratus) With Intralesional Bleomycin Chemotherapy and Radiation Therapy.  Journal of Exotic Pet MedicineVolume 26, Issue 4, October 2017, Pages 283-289.

    Evaluation of a brass based bolus material for use in radiation therapy [abstract]. Proceedings of Annual Veterinary Cancer Society, 2016.

    Anesthesia & Pain Management

    Sandra Z. Perkowski, VMD, PhD, DACVAA

    We are honored to include Dr. Sandie Perkowski in the VC3 family.  Dr. Perkowski is a Diplomate of the American College of Veterinary Anesthesia and Analgesia and is certified in veterinary medical acupuncture.  Her special interests include anesthesia in patients with cardiovascular and respiratory disease, as well as pain management before, during, and after surgery, including the effects of acupuncture analgesia.  After receiving her PhD studying the role of prostaglandins and other arachidonic acid metabolites in the development of inflammatory lung injury, she pursued further veterinary training, including both internship and residency, at the University of Pennsylvania, School of Veterinary Medicine, and served for several years as Chief of the Anesthesia Service in the Section of Surgery and Anesthesia at the Matthew J Ryan Veterinary Hospital in Philadelphia, PA.

    Dr. Perkowski has published numerous journal articles and book chapters, including ‘Anesthesia of the Patient with Respiratory Disease,’ Textbook of Respiratory Diseases of the Dog and Cat, 2004, ‘Anesthesia – Respiratory System,’ Textbook of Small Animal Surgery, 2003, ‘Physiologic and Antinociceptive Effects of Intrathecal Resiniferatoxin in a Canine Bone Cancer Model,’ Anesthesia, 2005, and ‘Postoperative Hypoxemia and Hypercarbia in Healthy Dogs Undergoing Routine Ovariohysterectomy or Castration and Receiving Butorphanol or Hydromorphone for Analgesia,’ JAVMA, 2003.  She has also served on the review boards of six veterinary journals.

    Dr. Perkowski’s research in subjects such as changes in brain activity of dogs receiving acupuncture therapy has earned her a number of awards including a National Institute of Health-NHLBI Mentored Clinical Scientist Development Award, which includes a 5-year grant of over $650,000.   As a lecturer, Dr. Perkowski has conducted numerous presentations around the world, as well as the United States.

    She has served as head of both the Examination Committee and Residency Committee for the American College of Veterinary Anesthesia and Analgesia and is currently liaison between that College and the American College of Veterinary Surgeons.  She is also a member of the American Veterinary Medical Association and the American Society of Anesthesiologists.

    CyberKnife Physicist

    Jun Yang, PhD

    Dr. Jun Yang is one of the most experienced CyberKnife physicists in the country and has spearheaded numerous studies on radiation dosage safety for patients receiving stereotactic body radiation therapy.

    Dr. Yang serves as chairman of the physics committee and on the board of directors of the Radiosurgery Society. He was also lead author of a chapter dedicated to CyberKnife in the recently published “Stereotactic Body Radiation Therapy.”


    (844) PET CYBR
    (844) 738 2927
    (outside USA +1 484 568 4177)
    50 Three Tun Road
    Malvern, PA, 19355

    (Next to HOPE VS)