Colorectal Cancer

Colorectal cancer, including colorectal cancer and colon cancer. Tumor mortality in China, men accounted for the fifth, sixth in women. 

 Colorectal cancer cases in Taiwan and around the world getting more and more a growing tendency, probably due to the popularity of the National Health Education, the National Pharmaceutical increased knowledge, diagnostic equipment and to find more of the progress of cases. 

 Early diagnosis, early detection, early treatment, the five-year survival rate is very high, with a cure rate higher than 75%. Colorectal cancer in Taiwan in terms of gender is similar for men and women, in 75 years for each of about 100,000 men, 11 were female, about 8 colorectal cancer occurred. Regional differences: European and American developed countries the incidence of the largest, followed by developing countries, Africa and Latin America minimum, fewer Asians than Westerners. 50 ~ 60 years the incidence of a maximum of between 20 years of age rarely. The first generation of Japanese immigrants the United States, colorectal cancer mortality is similar to the Japanese mainland, while the second and third generations of Japanese (Japanese) are 2.5 times higher rate. Asia, Europe and the United States Jews and Jews of the incidence of colorectal cancer is different, Europe and the United States about three times the Jews of the Jews in Asia. 

 Colorectal cancer is mainly adenocarcinoma, in the event of parts to 40 percent of the rectosigmoid and descending colon up to 35 percent, and the remaining 8% occurred in the cecum, ascending colon, transverse colon 16%. 

 Etiology 

 The formation of colorectal cancer, and meat, high-fat foods, low-fiber food is closely related to dietary habits. Is generally believed that with the following five factors: 

 Diet: fat, protein, carbohydrates, fresh fruits and vegetables. 

 Micronutrients such as vitamin A, C, D, E, phosphorus, calcium. 

 Serum nutrients, cholesterol, sugar, lipids, urea. 

 Medical quality, body mass index, physical activity index. 

 Living habits, smoking and drinking. 

 Symptoms 

 Symptoms of colorectal cancer are: anal bleeding, change in bowel habits, tenesmus (END stool solution still would like solution), the long-term anemia and weight loss. Late or palpable abdominal mass and swollen lymph glands and so on. 

 Colorectal cancer is rare in the early symptoms may be the only bleeding or abdominal pain, generally the larger the right side of the large intestine lumen and residues into a liquid form, and its symptoms are mainly digestive disorders, loss of appetite, nausea, vomiting, abdominal pain, bloating, anemia, discomfort or pain, while the left side of the large intestine lumen narrow and for the solid residue, and its symptoms stool stained with blood or mucus appearance, occasionally, there would be more blood out with the faeces, stool habits change, long rectal cancer that is obstructive symptoms at any time want to be a sense of stool, and defecation too hard, there is the phenomenon of pain. Generally speaking, patients from the surgical treatment of symptoms, the average has been a waste of time for more than a year. 

 Colorectal adenocarcinoma in the majority, followed by mucinous adenocarcinoma. 

 Diagnosis and Treatment 

 About 55 percent of patients with constipation due to the treatment, because  mucus and treatment accounted for 80 ~ 90%, with blood hematochezia treatment of rectal cancer by about 30%. 

 Early colorectal cancer and intestinal symptoms similar to benign disease. Unexplained recurrent abdominal pain semi stool habits change, or stool blood long, abdominal mass hit. 

 If anemia, fecal occult blood, a vegetarian for three days, for inspection three days, such as three days are positive, consideration should be given the diagnosis of colorectal cancer. 

 Barium enema x-ray accuracy rate of 88.5% ~ 90%.