Marilyn Dunn graduated from the Faculty of Veterinary Medicine of the University of Montréal in 1994 and completed a one-year internship at the same institution.
She completed a residency in small animal internal medicine and a Master’s degree at the University of Saskatchewan and became board certified by the American College of Veterinary Internal Medicine in 1999.
After 2 years in a private practice, she became a professor in internal medicine at the University of Montreal.
In 2008, she completed a Fellowship in interventional radiology and endoscopy at the Matthew J Ryan Veterinary Hospital of the University of Pennsylvania.
She is a founding member and current president of the Veterinary Interventional Radiology and Interventional Endoscopy Society (VIRIES) and directs the interventional medicine service at the University of Montreal.
Her main interests are in urinary tract and respiratory interventions and thrombosis.