What are the main clinical diagnostic methods for colon cancer?

What are the main clinical diagnostic methods for colon cancer? I believe many people have this question. Only when we understand its diagnostic methods can we better treat it. Let us follow the experts to learn about the clinical diagnostic methods of colon cancer .

1. Anal canal examination and proctoscopy to check for rectal polyps, rectal cancer, internal hemorrhoids or other lesions for identification. This is the clinical diagnosis method for colon cancer.

2. Sigmoidoscopy and fiber colonoscopy. Although the sigmoidoscope is 25 cm long, 75% of colorectal cancers are within the scope of the sigmoidoscope.

3. X-ray examination 1) Abdominal plain film examination is also a clinical diagnosis method for colon cancer. It is suitable for cases with acute intestinal obstruction. The colon above the obstruction site can be seen to be inflated and swollen. 2) Barium enema examination can show that the intestinal wall at the cancer site is stiff, with poor expansion, peristalsis weakened or disappeared at the lesion, irregular or disappeared colon bag shape, narrow intestinal cavity, disordered, damaged or disappeared mucosal folds, filling defects, etc.

4. Carcinoembryonic antigen (CEA) test: It has little diagnostic value for early cases, but it is helpful in estimating prognosis and judging recurrence.

The above is an introduction to the clinical diagnostic methods of colon cancer. I hope the above content can be helpful to you. If you have any questions about colon cancer, you can contact our online experts and they will give you detailed answers.

For more information, please visit the colon cancer special topic at http://www..com.cn/zhongliu/jca/ or consult an expert for free. The expert will then give a detailed answer based on the patient's specific situation.