Department of Pathology

Dalhousie University

Dr. Thomas Arnason, MD, FRCPC

Associate Professor

PATH-ArnasonThomas
Department of Pathology

Email: thomas.arnason@nshealth.ca
Phone: 902-473-7517
Research Topics:
  • Gastrointestinal, pancreaticobiliary, and liver pathology
  • Predictive biomarkers in gastrointestinal cancers
  • Pathology education, particularly in medical school
  • Evaluation of Faculty Preceptors for clinical rotations in medical school and residency training

Dr. Thomas Arnason is a practicing Diagnostic and Molecular Pathologist (Anatomical Pathologist) at the QEII Health Sciences Centre in Halifax, NS with subspecialty interest in pathology of the gastrointestinal tract, pancreas, and liver.

Dr. Arnason is the Chair of the Pathology Department’s Education and Undergraduate Education Committees. He serves as the Dalhousie Medical School Pathology longitudinal theme head. He supervises research projects for medical students and pathology residents, and collaborates on some MSc and PhD student projects.

Education

  • BSc: University of Ottawa, Ottawa, ON
  • MD: University of Ottawa, Ottawa, ON
  • Anatomical Pathology Residency: Dalhousie University, Halifax, NS
  • Fellowship in Gastrointestinal Pathology: Harvard University / Massachusetts General Hospital, Boston, MA

Selected Publications

  1. Rafiq R, Dow T, Hatchette J, Arnason T. The influence of a brief pathology elective on medical student interest and understanding of careers in pathology. Canadian Journal of Pathology. 2021; 13(4), 34-41.
  2. Cottenden J, Filter ER, Cottreau J, Moore D, Bullock M, Huang WY, Arnason T. Validation of a Cytotechnologist Manual Counting Service for the Ki67 Index in Neuroendocrine Tumors of the Pancreas and Gastrointestinal Tract. Arch Pathol Lab Med. 2018 Mar;142(3):402-407.
  3. Arnason T, Borger D, Corless C, Hagen C, Iafrate J, Makhlouf H, Misdraji J, Sapp H, Tsui WM, Wanless IR, Zuluaga Toro, T, Lauwers GY. Biliary Adenofibroma of Liver. Morphology, Tumor Genetics, and Outcomes in 6 Cases. Am J Surg Pathol. 2017; 41(4):499-505.
  4. Cottreau J, Gruchy S, Kamionek M, Lauwers GY, Arnason T. Prevalence of Esophageal Epidermoid Metaplasia in 1048 Consecutive Patients and 58 Patients with Squamous Neoplasms. Histopathology. 2016; 68(7):988-95.
  5. Hamilton CM, Arnason T. Ileitis associated with Meckel's diverticulum. Histopathology. 2015;67:783-791.
  6. Arnason T, Brown I, Goldsmith JD, Anderson W, O'Brien B, Wilson C, Winter H, Lauwers GY. Collagenous Gastritis: A Morphologic and Immunohistochemical Study of 40 Patients Mod Pathol. 2015;28:533-544.
  7. Arnason T, Kamionek M, Yang M, Yantiss RK, Misdraji J. Significance of Proximal Margin Involvement in Low-Grade Appendiceal Mucinous Neoplasms. Arch Pathol Lab Med. 2015;139:518-521.
  8. Arnason T, Liang WY, Alfaro E, Kelly P, Chung DC, Odze RD, Lauwers GY. Morphology and natural history of familial adenomatous polyposis associated dysplastic fundic gland polyps. Histopathology. 2014;65:353-362.