Susan J. Tornquist, DVM, MS, PhD, DACVP

Lois Bates Acheson Dean, Professor of Clinical Pathology

Office: 541-737-6943 (voice mail)
Other: 541-737-2098 (reception)
Fax: 541-737-4245

Magruder Hall

Magruder Hall 200B

700 SW 30th Street

700 SW 30th Street
Corvallis, OR 97331
Honors and Awards: 
Norden Distinguished Teacher Award, 1999; Pfizer Research Award for Research Excellence, 2002; Inducted into Veterinary Honor Roll, Morris Animal Foundation, 2003

Profile Field Tabs

Affiliated with: 
Veterinary Medicine
OSU Main Campus
Research/Career Interests: 
  • Hematology
  • Diagnostic cytology and hematology
  • Metabolic disease
  • Medical education/curriculum

My research interests are primarily in immune response to infectious disease, hematology and metabolic diseases. We do most of our work with camelids (llamas and alpacas), but also collaborate on studies in a variety of animal species. Our particular interest is in Mycoplasma haemolamae, an organism that affects red blood cells of llamas and alpacas. We developed a PCR assay for the organism and have used it to study multiple aspects of the infection. 



Susan J. Tornquist serves as the Lois Bates Acheson Dean for the Carlson College of Veterinary Medicine and Professor of Clinical Pathology. She has Bachelor’s degrees from Michigan State University and the University of New Mexico, an M.S. from the University of New Mexico, a DVM from Colorado State University and residency training and a PhD from Washington State University. She was in a private veterinary practice for 6 years before returning to academia, joined the Oregon State University College of Veterinary Medicine faculty in 1996, and was appointed Associate Dean for Student and Academic Affairs in 2005.  

Dr. Tornquist continues to head a diagnostic clinical pathology lab and provides diagnostic services in addition to teaching several courses in the professional program. Her research has most recently focused on hematology, infectious, and metabolic diseases of camelids, and diagnostic techniques in a variety of animal species.

My Publications


Journal Article

J. D. Rigas, Montilla, H. J., Tornquist, S. J., Valentine, B. A., and Kutzler, M. A., What is your diagnosis? Equine ovarian cyst fluid., Veterinary clinical pathology / American Society for Veterinary Clinical Pathology, vol. 41, no. 3, pp. 435-6, 2012.


Journal Article

B. A. Valentine, Stieger-Vanegas, S. M., Brown, S. R., Tornquist, S. J., and Young, K., Exophthalmos due to multicentric B-cell lymphoma in a goat., The Canadian veterinary journal. La revue vétérinaire canadienne, vol. 52, no. 12, pp. 1350-2, 2011.