The five most common cancers are stomach cancer, colon cancer, lung cancer, liver cancer, and breast cancer. Among them, the incidence of colorectal cancer is one of the highest in the world.
While the mortality rate of patients with stomach cancer is gradually decreasing, the mortality rate of colorectal cancer patients has been steadily increasing since the 90s, so it is important to pay attention to the colon health. Colorectal cancer is a malignant tumor in the colon located in the last stage of the digestive system and is mainly present in the appendix, colon, rectum, and among other parts classified as anus area, appendix, colon, and rectum.
If a malignant tumor occurs in the colon, it’s called colon cancer, when cancer cells multiply in the rectum, it’s categorized as rectal cancer. The symptoms that occur are slightly different depending on where cancer develops. Among these symptoms of rectal cancer are mucus in stool, blood in stool, feeling of pulling in the lower belly, and tightness near the anus. Further progress is accompanied by pain to the anus, perineal pelvis, and thigh area, and eventually, cancer cells spread to the liver, lungs, and bones. On the other hand, even in the event of colon cancer, abnormal bowel movements such as blood in stools, mucus, constipation or diarrhea, and post-bowel movements may occur. Abdominal bloating and intestinal obstruction also appear. Intestinal obstruction is a symptom of blockage in the small intestine and can be divided into the mechanical intestinal obstruction and paralyzing intestinal obstruction.
The leading cause of mechanical intestinal obstruction is adhesions, which cause pain and activity impairment as the intestines narrow. And the main factors that cause these adhesion symptoms are outside pressure on the intestines and surgery aftereffects. Among colon cancer patients, over-proliferating malignant tumors often block and adhesion the inside of the large intestine, eventually leading to intestinal obstruction. If intestinal obstruction caused by colon cancer, constipation and diarrhea persist with a bloated stomach, and you may feel severe abdominal pain.
Colorectal cancer has a relatively good prognosis, with an average survival rate of 90% at Stage I and 80% at Stage II, but the five-year survival rate is noticeably lower for cancer patients with intestinal obstruction. And if you have an intestinal obstruction, it can be spread into a serious disease, and appropriate treatment should be applied. The method used in the treatment of intestinal obstruction caused by colon cancers is colostomy surgery and stent procedures that are the most widely known. Colostomy refers to the procedure of artificially making feces and gas outlets. This procedure can be performed when rectum or anus is severely resected in colon surgery. Artificial anus attached after rectal surgery is usually for a permanent purpose.
Stenting is a treatment to widen the narrowed or blocked intestine by placing a thin metal cylindrical stent into the intestine.
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