Department of Population Medicine & Diagnostic Sciences

Deanna M.W. Schaefer


DeannaSchaeferClinical Assistant Professor
Veterinary Clinical Pathology
Department of Population Medicine and Diagnostic Sciences
S1-050 Schurman Hall
College of Veterinary Medicine
Cornell University
Ithaca, New York 14853
Phone:  607-253-3265
Fax: 607-253-3711


My primary responsibilities are in diagnostic service and teaching, but I also enjoy the challenges of clinical research. Providing high-quality clinical pathology diagnostic service to veterinarians is rewarding, knowing that I am contributing to a veterinarian's ability to diagnose and manage a patient. My teaching efforts span service-related teaching (interns, residents, and veterinary students in the clinical laboratory setting), classroom teaching within the veterinary curriculum, and continuing education for veterinarians. My main goal in these efforts is to instill veterinary students, interns, residents, and practicing veterinarians not only with an understanding of clinical pathology, but also a love of and interest in the subject. My service and teaching efforts often feed into clinical and collaborative research projects, including such things as development and validation of new testing methods and publication of unique case reports.

Research Interests

My research interests include iron metabolism and collaborative research involving various clinical pathology-related topics.


  • 2003 Clinical Laboratory Science, University of Texas Medical Branch, Galveston, TX BS
  • 2003 Medical Technology, Medical Technologist, American Society for Clinical Pathology Professional Certification
  • 1999 Veterinary Medicine, Texas A&M University, College Station, TX DVM
  • 2003-2006 Veterinary Clinical Pathology, The Ohio State University, Columbus, OH Residency
  • 2006 Veterinary Clinical Pathology, American College of Veterinary Pathologists Board Certification
  • 2006  MS, Experimental Pathobiology, The Ohio State University, Columbus, OH

Research and Professional Experience

  • 2013-present: Clinical Assistant Professor, Veterinary Clinical Pathology, Cornell University
  • 2006-2013: Lecturer, Veterinary Clinical Pathology, Cornell University
  • 2003-2006: Resident, Veterinary Clinical Pathology, The Ohio State University
  • 2002-2003: Research Assistant, Sealy Center for Vaccine Development, University of Texas Medical Branch, Galveston
  • 1999-2003: Small Animal Veterinarian

Selected Publications (2009-present)

  1. Bezjian M, Diep AN, DeMatos R, Schaefer DMW. Chinese box turtle (Cuora flavomarginata) with acute lymphoid leukemia described by cytochemical and immunohistochemical phenotyping. (In Press, Vet Clin Pathol).
  2. Mishra A, Liu S, Sams GH, Curphey DP, Santhanam R, Rush LJ, Schaefer DM, Falkenberg LG, Sullivan L, Jaroncyk L, Yang X, Fish H, Wu LC, Hickey C, Chandler JC, Wu YZ, Heerema NA, Chan KK, Perrotti D, Zhang J, Porcu P, Racke FK, Garzon R, Lee RJ, Marcucci G, Caligiuri MA. Aberrant overexpression of IL-15 initiates large granular lymphocyte leukemia through chromosomal instability and DNA hypermethylation. Cancer Cell, 2012; 22(5):645-655.
  3. Dawson DR, Scrivani PV, Schaefer DMW, Bogdanovic LB, Ainsworth DM. Epithelioid variant of haemangiosarcoma in a gelding. Equine Vet Educ, 2009; 21(10):519-524.
  4. Schaefer DMW, Priest H, Stokol T, Goldstein RE, Belcher N. Anticoagulant-dependent in vitro hemagglutination in a cat. Vet Clin Pathol, 2009; 38(2):194-200.
  5. Schaefer DMW, Radin MJ. Urine gamma-glutamyltransferase/creatinine ratio. In: Blackwell’s five-minute veterinary consult: laboratory tests and diagnostic procedures: canine & feline. Ames, Iowa: Wiley-Blackwell, 2009.
  6. Schaefer DMW, Radin MJ. Calcitriol. In: Blackwell’s five-minute veterinary consult: laboratory tests and diagnostic procedures: canine & feline. Ames, Iowa: Wiley-Blackwell, 2009.
  7. Schaefer DMW, Forman MA, Kisseberth WC, Lehman AM, Kelbick NT, Harper P, Rush LJ. Quantification of plasma DNA as a prognostic indicator in canine lymphoid neoplasia. Veterinary and Comparative Oncology, 2007; 5(3):145-155.
  8. Davis DG, Schaefer DMW, Hinchcliff KW, Wellman ML, Willet, VE, Fletcher JM. Measurement of serum IgG in foals by radial immunodiffusion and automated turbidimetric immunoassay. J Vet Int Med, 2005; 19:93-96.