John Rossiter

John Rossiter is a Professor in Neuropathology within the Department of Pathology and Molecular Medicine at Queen's University and Kingston Health Sciences Centre. Former Chair of the Royal College of Physicians and Surgeons of Canada (RCPSC) Neuropathology examination board.

Research focuses on translational aspects of brain tumours, bridging clinical neuropathology with therapeutic development. Specific interests include tumour microenvironment, diagnostic biomarkers, and treatment response mechanisms.

Directs neuro-oncology research and collaborates with clinical teams on brain tumour diagnostics. Affiliated with the Canadian Cancer Trials Group Tumour Tissue Data Repository.