Andrew Williams

Andrew Williams MD, FRCPC (AP & FP)
Assistant Professor
Anatomic Pathology
Department of Laboratory Medicine & Pathobiology
Andrew Williams
Contact Info
T: (647) 329-1921
Ontario Forensic Pathology Service
25 Morton Shulman Ave.
Toronto, ON, M3M 0B1
Appointment Status Primary
Clinical Interests
Anatomic Pathology, Forensic Pathology

Dr. Williams completed his BMSc with an Honors Specialization in Pharmacology and Toxicology (2007) prior to obtaining his MD (2011) from The University of Western Ontario. He has completed residencies in Anatomical Pathology (Dalhousie University, 2016) and  Forensic Pathology (University of Toronto, 2017). He joined the Provincial Forensic Pathology Unit in Toronto as a Category A Forensic Pathologist in 2017 and is appointed as a coroner for the province of Ontario.


Research Synopsis

I seek to further the understanding of sudden, unexpected deaths that remain medically unexplained following a thorough death investigation. Specifically, I am seeking to explore the relationship between genetic changes in genes associated with cardiomyopathies and channelopathies in infants and those who die of Sudden Unexpected Death in Epilepsy (SUDEP).

Additional research endeavors are targeted towards leveraging the postmortem imaging capacity at the Provincial Forensic Pathology Unit in order to study how this technology can best be used in a reliable manner to assist with the medicolegal investigation of death.

Publications and Awards

View PubMed search of this faculty member's recent publications.

Recent Publications

Journal Articles

Williams AS, Greer W, Bethune D, Craddock K, Flowerdew G, Xu Z. ALK+ lung adenocarcinoma in never smokers and long-term ex-smokers: prevalence and detection by immunohistochemistry and fluorescence in situ hybridization. Virchows Archiv. 2016 Nov;469(5):533-540. doi: 10.1007/s00428-016-2005-y.

Williams AS, Shawwa A, Merrimen J, Dakin Haché K. Expression of OCT4 and SALL4 in diffuse large B-cell lymphoma: an analysis of 145 consecutive cases and testicular lymphomas. Am J Surg Pathol. 2016 Jul;40(7):950-7. doi: 10.1097/PAS.0000000000000648.

Williams AS, Dakin Haché K. Recognition and discrimination of tissue marking dye color by surgical pathologists – recommendations to avoid errors in margin assessment. Am J Clin Pathol. 2014 Sep;142(3):355-61. doi: 10.1309/AJCPOXRMK15VCQTR.

Williams AS, Huang WY. The analysis of microsatellite instability in extracolonic gastrointestinal malignancy. Pathology. 2013;45(6):540-52. doi: 10.1097/PAT.0b013e3283653307.

Sharmin S, Guan H, Williams A, Yang K. Caffeine reduces 11β-hydroxysteroid dehydrogenase type 2 expression in human trophoblast cells through the adenosine A(2B) receptor. PLoS ONE. 2012;7(6): e38082. doi: 10.1371/journal.pone.0038082.

Yau G, Williams A, Brown J. Family physicians' perspectives on personal health records: Qualitative study. Canadian Family Physician. 2011;57(5):e178-84.

Case Reports

Williams AS, Castonguay M, Murray SK. Aortic intimal separation resulting from manual cardiopulmonary resuscitation – completing the spectrum of blunt thoracic aortic injury complicating CPR. Int J Legal Med. 2016 Nov;130(6):1581-1585. doi: 10.1007/s00414-016-1377-5.

Williams AS, Bowes MJ. Metal dust deposition in a shotgun wound associated with barrel modification. Forensic Sci Med Pathol. 2016 Mar;12(1):90-4. doi: 10.1007/s12024-015-9736-y.

Williams AS, Little D, Herath J. Sudden unexpected death as a result of primary aortoduodenal fistula identified with postmortem computed tomography. Forensic Sci Med Pathol. 2015 Dec;11(4):596-600. doi: 10.1007/s12024-015-9719-z.

Letters to Editor/Items of Short Correspondence

Williams AS, Bullock MJ. Spiral bodies in pulse granulomas are remnant plant vascular structures. Pathology. 2015 Oct;47(6):599-601. doi: 10.1097/PAT.0000000000000312.

Williams AS, Dakin Haché K. Variable fidelity of tissue-marking dyes in surgical pathology. Histopathology. 2014 May;64(6):896-900. doi: 10.1111/his.12328.