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Diagnostic Services

Including Endoscopy, Intestinal Imaging, Virtual Colonoscopy and Histopathology.

The Wolfson Unit for Endoscopy was established in 1996 as a National centre for endoscopy.  In 2005 the Unit was awarded National Training Status and in 2007 was recognised as a World Centre of Excellence by the World Organization of Gastrointestinal Endoscopy and the only Centre in the UK to be recognised in this way.  A full range of therapeutic procedures is performed in the Unit, one of the best equipped in the world.  Highly specialised teams of endoscopists and endoscopy technicians utilise state-of-the-art instruments and accessories, allowing them to deliver a world class endoscopy service to local, national and international patients.  The Wolfon Unit has long been known for colonoscopy, gastroscopy, flexible sigmoidoscopy and advanced polypectomy but it also offers the full range of endoscopic procedures including capsule enteroscopy, double balloon enteroscopy and ERCP.  Furthermore, it is now well established as one of the premier Bowel Cancer Screening units in London. 

Intestinal imaging

This is a small unit that is an integral part of St Mark's Hospital. It is well equipped with modern digital screening units and ultrasound scanners, and performs specialised contrast and ultrasound studies. 

Virtual Colonoscopy

Bowel cancer is the second commonest cause of cancer related death, however it can be cured if detected at an early stage and even prevented if its precursor, the colonic polyp can be identified and subsequently removed.  Virtual Colonoscopy (VC) utilises the latest CT body scanner technology for detecting and staging colonic polyps and bowel cancer


The department has a distinguished history in both research and clinical colorectal pathology which goes back to 1922. It continues to be involved in specialist reporting of colorectal specimens including a number of complex cases referred by other hospitals, in addition to maintaining a high profile in pioneering new and novel histopathological techniques.

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