Phil Tozer

United Kingdom
Written By AB

About

Phil Tozer is a specialist IBD and fistula surgeon based at St Mark's, the National Bowel Hospital in the UK. He leads the Robin Phillips Fistula Research Unit at St Mark's and his research interests include complex abdominal Crohn's disease, IBD and non-IBD perianal fistula, rectovaginal fistula, pouch fistula and pouch disorders, including pouch dysfunction. 


He has authored and co-authored an impressive portfolio of publications in colorectal disease, including the European Society of Coloproctology guidelines for the diagnosis and treatment of cryptoglandular fistulas, and the TOpClass classification for fistulising perianal Crohn's disease. In 2021, he co-founded the TOpClass consortium with Professor Ailsa Hart, in order to drive advances in international collaborative research in perianal Crohn's disease.

 

Related Articles & Publications

Publications and Events
Defining Radiological Healing in Perianal Fistulizing Crohn's Disease: A TOpClass Global Expert Delphi Consensus
Publications
Defining Radiological Healing in Perianal Fistulizing Crohn's Disease: A TOpClass Global Expert Delphi Consensus
Publications

A global expert consensus defining what constitutes radiological healing and improvement on MRI in perianal Crohn’s disease, establishing clear, standardised criteria to guide both clinical assessment and research outcomes.

Publications
Perianal Fistulising Crohn’s Disease – Associated anorectal and fistula cancers: Systematic Review and Expert Consensus 
Publications
Perianal Fistulising Crohn’s Disease – Associated anorectal and fistula cancers: Systematic Review and Expert Consensus 
Publications

A global TOpClass review and expert consensus outlining the small but significant risk of anorectal and fistula-associated cancers in long-standing perianal Crohn’s disease, with practical guidance on risk awareness and prompt investigation of new or changing perianal symptoms.

Publications
TOpClass Consortium Meeting at ECCO 2026 
Upcoming Events
TOpClass Consortium Meeting at ECCO 2026 
Upcoming Events

TOpClass Consortium Meeting at ECCO on 19th February 2026 – click for further information. (after click, it should take them to the upcoming events tab) 

Upcoming Events

Related Consortium

Consortium Members
The Fistula Research Unit at St. Mark’s Hospital
Europe
The Fistula Research Unit at St. Mark’s Hospital
Europe

City: London | Country: United Kingdom
The Fistula Research Unit at St. Mark’s Hospital is headed by Professor Ailsa Hart and Mr Phil Tozer. The centre has a strong history of championing research in the field of perianal Crohn’s Disease and progressing the medical and surgical management of perianal fistula. 

Read more →
Europe
AB
Previous

Professor Ailsa Hart
Next

Luke Hanna BSc(Hons) MBBS MRCP)