10.1055/b-0034-91858 Malignant Diseases of the Colon and Rectum By far the most common colonic malignancy is adenocarcinoma. Rare tumors include primary lymphoma, carcinoids, gastrointestinal stromal tumors, melanomas, mesenchymal malignancies (such…
10.1055/b-0034-91855 Normal Anatomy of the Colon and Rectum Thorough knowledge of the anatomy and the regular two-dimensional (2D) and three-dimensional (3D) CT morphology of the large bowel is essential for…
10.1055/b-0034-91859 Inflammatory Bowel Disease Of the inflammatory bowel diseases, diverticulitis and chronic inflammatory bowel diseases are the most common causes of stenotic changes to the bowel wall. CT colonography is…
10.1055/b-0034-91866 Strategies for the Standardization and Documentation of Findings To improve and standardize the clinical communication of results of CT colonography, in 2005 the Working Group on Virtual Colonoscopy in…
10.1055/b-0034-91860 Ileocecal Region The ileocecal region comprises the cecum, appendix, ileocecal valve, and terminal ileum. Because of the complex topography of this region, it is sometimes difficult to identify positional…
10.1055/b-0034-91869 Screening Requirements Colorectal cancer is one of the most common cancers in the Western world. Many countries have already implemented screening programs or are considering them. Certain requirements must…
10.1055/b-0034-91870 Choice of Screening Procedure Various procedures (fecal occult blood test [FOBT]), sigmoidoscopy, colonoscopy, CT colonography) are available for screening for colorectal cancer. These methods differ in terms of sensitivity,…
10.1055/b-0034-91861 CT Colonography for Surveillance after Colorectal Surgery Follow-Up after Colorectal Surgery Surveillance for recurrent and metachronous tumors after surgical resection of colorectal cancer is clinically important because early detection…
10.1055/b-0034-91863 Extracolonic Findings During a CT colonographic examination, the entire abdomen and pelvis are scanned. This means that, along with the colon, extracolonic organs and structures are also examined, including…
10.1055/b-0034-91868 Epidemiology of Colorectal Carcinoma More than 300 000 new cases of colorectal cancer are reported annually in the United States and Europe, making it the second most common malignancy…
