[Colon and rectum]

The present TNM classification of the large bowel cancer which appeared in the "TNM Classification of malignant Tumours. Fourth Edition 2nd Revision 1992" was explained. The differences of T classification among large intestine and stomach and also depth of invasion classification of the Japanese Society for Cancer of the Colon and Rectum (JSCCR) was also explained. Using TNM Supplement 1993, detailed explanation was given for some delicate terminological problems such as pericolic nodes, perirectal nodes and lymph nodes along the course of the named vascular trunk. The new classification of cancer of the small intestine and a proposal for a classification of the gastrointestinal sarcoma were introduced.