Pronunciation: (KOH-lun KAN-ser)
Cancer that forms in the tissues of the colon (the longest part of the large intestine). Most colon cancers are adenocarcinomas (cancers that begin in cells that make and release mucus and other fluids).
Source: NCI Dictionary of Cancer Terms
Caption: Anatomy of the lower digestive system, showing the colon and other organs.Date last modified: 2007-01-10