Associate Professor

Patrick Shannon

Department of Laboratory Medicine & Pathobiology


Mount Sinai Hospital: Sinai Health
600 University Ave., Pathology & Lab Medicine, Room 6-500-15, Toronto, Ontario Canada M5G 1X5
Research Interests
Brain & Neuroscience, Human Development & Aging
Clinical Interests
Pathology: Neuropathology, Pathology: Anatomical
Appointment Status

Dr. Shannon is a graduate of McGill University and the University of Toronto. Upon completion of his medical degree, he trained in Toronto where he completed fellowships in Neuropathology and Anatomical Pathology.

Since 2005 he has worked at Mount Sinai Hospital, Toronto, as a Perinatal Pathologist and is currently the Medical Director of the autopsy and perinatal service there as well as an Associate Professor in LMP at the University of Toronto.

He is currently serving as Chair of the Specialty Committee for Neuropathology for the Royal College of Physicians and Surgeons and was the Residency Program Director for Neuropathology at the University of Toronto.

Selected Publications

Fetal syringomyelia. Guo A, Chitayat D, Blaser S, Keating S, Shannon P. Acta Neuropathol Commun. 2014 Aug 6;2:91.

Chang KT, Keating S, Costa S, Machin G, Kingdom J and Shannon P. Third-trimester stillbirths: correlative neuropathology and placental pathology. Pediatr Dev Pathol. 2011 Sep-Oct;14(5):345-52. Epub 2011 Feb 23. S     

Corroboration of normal and abnormal fetal cerebral lamination on postmortem MR imaging with postmortem examination. Widjaja E, Geibprasert S, Mahmoodabadi SZ, Brown NE, Shannon P. AJNR Am J Neuroradiol. 2010 Nov;31(10): 1987-93.


Medical Director, Mount Sinai Hospital autopsy service

Honours and Awards

LMP Leadership Award, University of Toronto (2022)