Almost all colon cancers are primary adenocarcinomas, which are the third most common cancer in both men and women in North America and Western Europe. Colon cancers are the most common gastrointestinal (GI) carcinomas and have the best prognosis.
Colon cancer includes cancerous growths in the colon, rectum and appendix. It is the third most common form of cancer and the second leading cause of death among cancers in the Western world. Many colon cancers are thought to arise from adenomatous polyps in the colon. These mushroom-like growths are usually benign, but some may develop into colon cancer over time. The majority of the time, the diagnosis of localized colon cancer is through a colonoscopy where a camera is passed up the colon to visualise and obtain a biopsy for testing.
Colon Adenocarcinoma Picture
The symptoms of colon cancer may not be apparent early on. However the early symptoms of colon cancer to watch out for include any change in bowel habit such as constipation or diarrhea and any blood in the stools. Read on for more information of colon cancer symptoms.
Although there is no absolute cause of colon cancer, there are risk factors that increase the likelihood of developing colon cancer. These risk factors include age, smoking, high meat and low fiber diet, hereditary conditions and ulcerative colitis. Read on for more information of colon cancer causes.
Colon adenocarcinoma cancer treatment
Colon cancer treatment consists of mainly surgery, radiation therapy and chemotherapy.
The treatment of choice depends on the stage of the cancer itself. If detected early, simple surgery may all be that is required. If it is discovered at a late stage, radiation therapy and chemotherapy may be required to provide the best chance of recovery. Read on for more information of colon cancer treatments.
Colon cancer survival is directly related to detection and the type of colon cancer involved. Survival rates for early stage colon cancer detection is about 5 times that of late stage cancers.
The treatment of colon cancer depends on the staging of the cancer. When colon cancer is caught at early stages (with little spread and no metastases) it can be curable. Surgery remains the primary treatment of colon cancer while chemotherapy and/or radiotherapy may be recommended depending on the individual patient's staging and other medical factors.
Surgical treatment is by far the treatment most likely to result in a cure of colon cancer if the tumor is localized. Very early colon cancer that develops within a polyp can often be cured by removing the polyp at the time of colonoscopy. More advanced cancers typically require surgical removal of the section of colon containing the tumor leaving sufficient margins to reduce likelihood of re-growth.
Chemotherapy is used in the treatment of colon cancer to reduce the likelihood of metastasis developing, shrink tumor size, or slow tumor growth. Chemotherapy is often applied after colon cancer surgery (adjuvant), before surgery (neo-adjuvant), or as the primary therapy if surgery is not indicated (palliative).
Radiation therapy is used in treating colon cancer to kill tumor tissue before or after surgery or when surgery is not indicated. Radiotherapy is not used routinely in colon cancer, as it could lead to radiation enteritis, and is difficult to target specific portions of the colon, but may be used on metastatic tumor deposits if they compress vital structures and/or cause pain.