Derek Tsang, MSc, MD, FRCPC

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Dr. Derek Tsang is a Clinician Investigator in the Radiation Medicine Program at Princess Margaret Cancer Centre. He completed his medical training at Queen’s University, followed by residency in radiation oncology at the University of Toronto. He obtained fellowship training in pediatric radiation oncology at St. Jude Children’s Research Hospital, and completed a Master's degree in clinical epidemiology at the Harvard T.H. Chan School of Public Health. He joined the Radiation Medicine Program in 2017 and is a member of the pediatric and adult central nervous system (CNS) tumour site groups.

My research goal is to optimize the use of precise radiation treatment for patients with brain tumours. By improving our understanding of treatment side effects after radiotherapy, as well as developing new ways to treat brain tumours (radiosurgery or proton therapy), my hope is that this research will enable oncologists to improve cancer treatments while decreasing long-term toxicities of radiation treatments. Current research projects focus on the following:

  • Management of pediatric central nervous system tumours
  • Reducing side effects of treatment for children with cancer
  • Repeat irradiation for recurrent tumours
  • Outcomes after radiosurgery for brain tumours
  • Use of advanced radiation modalities (proton therapy)

For a list of Dr. Tsang's publications, please visit PubMed or Scopus.


Staff Radiation Oncologist, Radiation Medicine Program, Princess Margaret Cancer Centre
Director, Resource Allocation, Radiation Medicine Program, Princess Margaret Cancer Centre
Assistant Professor, Department of Radiation Oncology, University of Toronto
Staff Physician, Division of Haematology/Oncology, The Hospital for Sick Children