Imperial College London


Faculty of MedicineFaculty of Medicine Centre

Honorary Clinical Senior Lecturer



k.monahan Website




CRUKWest Middlesex HospitalWest Middlesex Hospital





Consultant gastroenterologist and general physician at West Middlesex University Hospital (WMUH), London involved in teaching and supervision of undergraduate and postgraduate  students at Imperial College London (North West London Lead for Gastroenterology).

Colorectal cancer genetics service lead: 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 at WMUH.

My PhD from Imperial College and the University of London was awarded in 2009, ‘New genes for inherited multiple polyps and cancer of the large bowel’ under the supervision of Prof Huw Thomas in the Family Cancer Clinic, Colorectal Cancer Unit, St Mark’s Hospital and Prof Ian Tomlinson at the London Research Institute, Cancer Research UK.

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.



Vadhwana B, Graby J, Lewis M, et al., 2019, Predictors of abnormalities on magnetic resonance cholangiopancreatography: is there a role when the biliary tree is normal on previous imaging?, Ann Gastroenterol, Vol:32, ISSN:1108-7471, Pages:193-198

Cavazza A, Radia C, Harlow C, et al., 2019, An Experience of Implementation and Outcomes of Universal Testing for Lynch Syndrome in the United Kingdom., Colorectal Dis

Kennedy NA, Heap GA, Green HD, et al., 2019, Predictors of anti-TNF treatment failure in anti-TNF-naive patients with active luminal Crohn's disease: a prospective, multicentre, cohort study., Lancet Gastroenterol Hepatol

Walker GJ, Harrison JW, Heap GA, et al., 2019, Association of Genetic Variants in NUDT15 With Thiopurine-Induced Myelosuppression in Patients With Inflammatory Bowel Disease, Jama-journal of the American Medical Association, Vol:321, ISSN:0098-7484, Pages:773-785

Lythgoe MP, Malik SS, McPhail M, et al., 2018, Response to letter to editor regarding published articlemetachronous colorectal cancer following segmental or extended colectomy in Lynch syndrome: a systematic review and meta-analysis, Familial Cancer, Vol:17, ISSN:1389-9600, Pages:545-546

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