Imperial College London


Faculty of MedicineDepartment of Surgery & Cancer

Honorary Clinical Senior Lecturer



k.monahan Website




CRUKSt Marks HospitalNorthwick Park and St Marks Site





Consultant Gastroenterologist and Endoscopist at the Lynch Syndrome and Family Cancer Clinic, Polyposis Registry and Wolfson Endoscopy Unit, at St Mark’s Hospital, London.

PhD in Cancer Genetics from Imperial College and the University of London 2009.

We perform genetic testing, endoscopic and other screening for gastrointestinal cancer in susceptible populations.  I am also interested in caring for patients with other GI diseases with colleagues.

I am currently continuing my research interests in clinical and molecular aspects of gastrointestinal pathology, particularly in the field of endoscopy, colorectal, pancreatic and other GI cancers, GI polyps and other neoplasia.



Cavestro Giulia M, Mannucci A, Balaguer F, et al., 2023, Delphi initiative for early-onset colorectal cancer (DIRECt). International Management Guidelines., Clinical Gastroenterology and Hepatology, Vol:21, ISSN:1542-3565, Pages:581-603.E33

, 2023, 2022 CGA-IGC Annual Meeting: The collaborative group of the Americas on Inherited Gastrointestinal Cancer November 11-13, 2022 Abstracts, Familial Cancer, ISSN:1389-9600

Sun M, Moquet J, Ellender M, et al., 2023, Potential risks associated with the use of ionizing radiation for imaging and treatment of colorectal cancer in Lynch syndrome patients, Familial Cancer, Vol:22, ISSN:1389-9600, Pages:61-70

Georgiou D, Monje-Garcia L, Miles T, et al., 2023, A focused clinical review of lynch syndrome., Cancer Management and Research, Vol:15, ISSN:1179-1322, Pages:67-85

Ahmad A, Wilson A, Haycock A, et al., 2022, Evaluation of a real-time computer-aided polyp detection system during screening colonoscopy: AI-DETECT study., Endoscopy, ISSN:0013-726X

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