From Greek: para allelois beside one another. Lines are parallel if they lie in the same plane, and are the same distance apart over their entire length. Try this Drag any orange dot at the points P or Q. As the line PQ moves, the line RS will remain parallel to it. Parallel lines remain the same distance apart over their entire length.
It is important to know whether the cancer has got into the lymph glands because they are one of the main mechanisms by which the cancer can spread to other parts of the body. As long as the spread is just to the lymph glands near to the colon then this would indicate Stage 3 cancer.
Colon cancer also known as colorectal cancer and is caused by the growth of cancerous cells in the colon, the rectum and the appendix. Adenomatous polyps which look like mushrooms developing in the colon donât normally lead to cancer.imilarities and Differences. 1  Colon cancer affects the colon, rectum and the appendix, while prostate cancer is localized in the prostate. 2  In the first two stages, malign cells can be removed through surgery. 3  Smoking and alcohol abuse can trigger colon cancer.