Colon Cancer Colon Diagram
Colorectal cancer is cancer that occurs in the colon or rectum. Sometimes it is called colon cancer, for short. As the drawing shows, the colon is the large intestine or large bowel.
As the tumour grows in the colon or rectum, symptoms may become worse and can include: The same symptoms as above, but more severe. You may feel generally unwell, tired or lose weight. If the cancer becomes very large, it can cause a blockage (obstruction) of the colon.
Stage 1: cancer has grown through the mucosa of the colon but has not spread any further. Stage 2: Cancer has now grown into the wall of the colon. There is no lymph node involvement. Stage 3: Lymph node involvement is now seen, however, there is no metastasis to other parts of the body. Stage 4: Cancer has metastasis to other organs of the body.