What are the diagnostic methods for colon cancer?

With the continuous advancement of medical technology, the diagnosis methods of colon cancer have become more and more perfect. So far, there are many laboratory tests used for the diagnosis of colon cancer. The following is an introduction to the diagnosis methods of colon cancer.

Diagnosis of colon cancer 1. Anal examination and rectal endoscopy: used to check for rectal polyps, rectal cancer, internal hemorrhoids or other lesions

Diagnosis of 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. Microscopic examination can not only detect tumors, but also observe their size, location and local infiltration range. Through the sigmoidoscope, tissue can be taken for pathological examination. Skilled operators can insert the fiber colonoscope into the cecum and terminal ileum, and can also take photos. It is indeed an ideal diagnosis method for colon cancer.

Diagnosis of colon cancer 3. X-ray examination, abdominal plain film examination and barium enema examination: Abdominal plain film examination is suitable for cases with acute intestinal obstruction; barium enema examination can show that the intestinal wall at the cancer site is stiff, poorly distensible, peristalsis weakens or disappears at the lesion, the colon bag is irregular or disappears, the intestinal cavity is narrow, the mucosal folds are disordered, destroyed or disappeared, and there is a filling defect. Barium-air double contrast radiography is more helpful in diagnosing pedunculated tumors in the colon.

Diagnostic methods for colon cancer 4. Carcinoembryonic antigen test: This diagnostic method for colon cancer has little diagnostic value for early cases, but it is helpful in estimating prognosis and judging recurrence.

The above is the diagnosis method of colon cancer. Expert Tips: If you have symptoms of disease, you can choose the appropriate treatment according to your symptoms, but do not delay diagnosis, do not let your life be ruined in hesitation, you should go to a regular hospital for treatment in time to avoid delaying the disease and causing serious consequences. If you have other questions, please consult our online experts or call for consultation. Believe in miracles, I wish you health, happiness and joy!

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