What is colon cancer?
colon cancer is characterized by malignant tumors on the large intestine, rectum and/or attachment. It is the third most common form of cancer and the main cause of cancer death, the second only with lung cancer. In the United States, there is a seven percent chance that each person will develop colon cancer during his life. The colon cancer develops from adenomatous or gland polyps in the large intestine and rectum. In addition, behavioral factors can increase the risk of colon cancer. Smoking cigarettes, heavy drinking and lack of physical exercise are all risk factors, along with a diet with a high content of red meat and low content of fruits, vegetables, fish and poultry. They may include blood into stool, anemia, fatigue and weight loss. Symptoms such as intestinal habits or extreme cases, intestinal obstruction, are usually not present until large tumors are formed. The abdomen may ever be felt by a large tumor and can also affect urinarya bladder or vagin, leading to blood in the urine or unusual vaginal discharge. In advanced cases of colon cancer, cancer metastasizes into the liver, causing the liver enlargement, jaundice and abdominal pain. Blood clots are another symptom in the late stage.
timely detection is essential for surviving colon cancer. This disease may take years to develop, and if it is caught early enough, it can be surgically cured quite simply. If cancer has been metastasized, extensive surgical treatment and chemotherapy and recovery are usually required. Because the colon cancer does not cause apparent symptoms until it is somewhat advanced, the regulars of the screening R is recommended for endangered people.
The most common screening methods in the United States are a fecal occult blood test (FOBT) that controls the blood in the stool,which is not visible, and endoscopy in which the illuminated probe is inserted into the rectum and colon to check abnormalities. There are two types of endoscopy; Sigmoidoscopy looks at the large intestine and the lower rectum and is usually done in conjunction with the FOBT, while colonoscopy looks at the entire large intestine and rectum. If polyps are detected during colonoscopy, they can be removed immediately.
There are two methods to describe the cancer of the colon cancer. The older version, known as the Dukes system, was developed in 1932 and divides the disease into four phases, A to D. V A is limited to the intestinal wall. In B, it has grown around the intestinal wall. Lymphatic nodes are affected in C and D Metathesa is characterized. The TNM system describes the partitions of the disease by assigning another number to