Contact Information

Primary Contact

Tom (Marvin) Thomas
Veterinary Surgeon


10 Center Drive
Bethesda, MD 20892


The Division of Veterinary Resources Animal Surgery has supported large animal research and clinical care for more than 40 years. DVR surgeons provide outstanding and highly specialized large animal (rabbits, ungulates, etc.) research support in a state-of-the-art surgical suite. Specialty support includes surgical expertise, surgical and technical support, animal model development, and investigator training. We seek to support the unique needs and requirements of each investigator using animals in either basic or translational research.

Established Technologies

Facilities and Equipment
  • State-of-the-art Operating Suites
  • Digital Fluoroscopy
  • Digital Radiology
  • Surgical Support
  • Protocol development
  • Patient prep
  • Aseptic Technique Training
  • Large animal thoracic surgery
  • Large animal abdominal surgery
  • Large animal neurosurgery
  • Large animal orthopedics
Digital Radiographic Procedures
  • Dye Studies
  • Myelogram
  • GI Series

In addition to direct surgical support, DVR can provide services such as: tissue/organ harvests, tail vein injections, blood collection, endotracheal intubation, catheter placement, data collection, image processing, x-rays, fluoroscopy, laser Doppler, and ultrasound.

Animal Models supported by the core:
  • Dogs – Myocardial infarction, MI/reperfusion, Sepsis, Infectious Diseases, Bone Marrow Harvest/Aspirates, Hepatic and Splenic Aspirates, Reproductive Health (Ovariohysterectomy, Neuter), Tracheostomy, Vascular Catheter Placement, Urinary Catheter Placement
  • Pigs – Abdominal Aortic Aneurysm Model and Repair with Stents, Bladder Cancer Infusion Model, Vascular Access Catheterization
  • Nonhuman Primates – Vascular Access Catheterization, Vascular Access Ports, Fetal Surgery, Telemetry Implants, Lumbar Ports, Orthopedic Repair (Pins and Plates), Lymph Node Biopsy, Bone Marrow Harvest/Aspirates, Cesarean Section, Reproductive Issues (Hysterectomy, Castration, Vasectomy), Hepatic and Splenic Aspirates, Splenectomy, Hernia Repair, Neurosurgery (Catheters placed into the 3rd and 4th Ventricles, Ommaya Reservoirs, Subarachnoid Catheters, Placement of Probes in the Brain, Microdialysis, CSF Collection), Dental Health (extractions), Endoscopy, Rectal Biopsies, Radioisotope Placement and Imaging
  • Rabbits – Vascular Access Catheters, Liver Tumor Model, Embolization Model