Expert Witness – Dr Stephen Lowis
Consultant in Paediatric and Adolescent Oncology

Dr Lowis has been preparing medico-legal reports since 2015, focusing exclusively on paediatric practice. He maintains a full medico-legal practice, accepting instructions from both claimant and defendant law firms in personal injury and clinical negligence cases, Dr Lowis further demonstrates his expertise through invited lectures, including a presentation on “Paediatric Oncology Issues” at the American Association for Justice/Pan European Organisation of Personal Injury Lawyers (PEOPIL) Birth Injury and Medical Negligence Seminar in September 2025, and a presentation on “Brain and Spinal Cord Tumours” at the AvMA (Action against Medical Accidents) Annual Clinical Negligence Conference in March 2026.

Dr Stephen Lowis attended Oxford University Medical School where he gained his qualifications in 1979 and 1982, and the University of Newcastle upon Tyne where he gained his PhD in 1996. He became a fellow of the Royal College of Paediatrics and Child Health in 2007. Dr Lowis was a Consultant Paediatric and Adolescent Oncologist at Bristol Royal Hospital for Children from 1998, until 2022. He was Lead Clinician for 7 years, and led the neuro-oncology service from 1998 until 2017.

Prior to his role as Consultant Paediatric and Adolescent Oncologist, Dr Lowis had previously been appointed in the following roles:

Senior Registrar in Paediatric Oncology, Bristol Royal Hospital for Children
Clinical Lecturer in Child Health, University of Bristol
Leukaemia Research Fund Fellow and North of England Children’s Cancer Research Fund Clinical Research Fellow, Royal Victoria Infirmary, Newcastle.
Registrar Rotation, Royal Children’s Hospital, Melbourne.

Dr Lowis has worked extensively within the field of paediatric oncology, taking a special clinical interest in solid tumours, neuro-oncology, and pharmacology. He has undertaken research and clinical trials that have focused on the development of new drugs to treat tumours in children and adolescents.

Dr Stephen Lowis was Principal Investigator for nine National Cancer Research Institute clinical trials. He was Chief Investigator for two international clinical trials, both of which looked at the treatment of tumours in children. He was part of the Writing Committee and Trial Steering Committee for the first multinational randomized controlled clinical trial for the treatment of children with Atypical Teratoid/Rhabdoid Tumours.

Dr Lowis has published extensively. He has over 50 peer-reviewed publications, a textbook of neuro-oncology and numerous chapters featured within books. His publications have included novel research, reviews of current management and/or treatment of tumours, and in-depth case studies of children with cancer. Dr Lowis was previously appointed as Honorary Senior Clinical Lecturer at the University of Bristol.