Mr William Allum

Consultant Surgeon BSc MD FRCS (Eng) Hon FRCS (Edin)

Specialism: Breast, Gastrointestinal

Available at: Chelsea, Sutton

Special interests:

  • surgery for benign and malignant breast disease
  • surgery for oesophageal and gastric cancer including GISTs
  • perioperative multimodality trials


Mr Allum has both a private and an NHS practice at The Royal Marsden.

William Allum is Consultant Upper GI surgeon at The Royal Marsden NHS Foundation Trust, London. Following undergraduate and postgraduate training in Birmingham he spent time at MD Anderson Cancer Centre in Houston, Texas. He has held consultant posts in Leicester (as Senior Lecturer), St Bartholomew’s Hospital London and Epsom and St Helier Hospital before moving to The Royal Marsden.

His main area of clinical interest is in oesophageal and gastric cancer with a research interest in perioperative multimodality therapy and was joint Chief Investigator in the MAGIC trial of pre-operative chemotherapy in gastric cancer.

He is the immediate past President of the Association of Upper GI Surgeons of Great Britain and Ireland (AUGIS). He is also Chair of the National Cancer Intelligence Network Upper GI Clinical Reference Group and is responsible for overseeing national data on upper GI cancers and how it can be used to improve outcomes. He was appointed Chair of the Clinical Reference Group – Upper GI Surgery in 2013 which advises the NHS Commissioning Board on Specialist Commissioning of Oesophago-gastric Cancer services. He is chair of the European Society of Surgical Oncology Upper GI quality assurance group and is lead for the EURECCA project comparing outcomes in management of oesophago-gastric cancer across Europe.

He has maintained an interest in training throughout his consultant career and as Surgical Director of the Intercollegiate Surgical Curriculum Project was responsible for overseeing a full evaluation of the role and functionality of the ISCP.  He is currently chair of the Joint Committee on Surgical Training and is responsible to the 4 Royal College of Surgeons for surgical training in the UK and Ireland.

Clinical units