Colon cancer staging is categorized based on the condition of the colon itself as well as the growth of the tumor that cased the cancer. The risk of having colon cancer can be determined from his or her health history, whether or not there is someone in the family that has suffered this disease before. There are several tests that can be done in order to detect this disease such as physical and digital rectal exams. Here is the staging of colon cancer.
The stage I in the colon cancer staging is a condition where the tumor has grown through the muscularis mucosa to the submucosa or the inner layers of the colon. The tumor may also be grown into the muscularis propia even though it has not spread to the nearby lymph nodes or other parts of the body.
There are several condition for the stage II of colon cancer that include the tumor has grown into the outermost layers of the rectum or colon but has not reach nearby organs or gone through them. It can also be in the stage II when the tumor has grown through the rectum or colon walls but has not been spread to the nearby organs and it has not been spread to the nearby lymph nodes or other parts of the body.
The disease is considered to be in the stage II when the tumor has grown into the mucosa and into the submucosa and might even grown into the muscularis propia. It is also possible for the tumor to have spread to several nearby lymph nodes or in the fat areas near the lymph nodes. Other conditions of stage III in the colon cancer staging include the tumor has grown through the walls of the colon and rectum including the visceral peritoneum and it is also reached the nearby organs and spread to several lymph nodes.
The stage IV is always the most advanced stage in any cancer disease. The stage IV of colon cancer include that the tumor may have grown through the wall or the colon and rectum all the way and it can also be spread to the nearby organs as well as the lymph nodes near the initial position of the tumor. The stage IV colon cancer may also have been spread to one of the distant organs such as the liver or the lungs in this advanced colon cancer staging.