There are five main items in the examination of colorectal cancer

The examination of colorectal cancer is very important, but many people will ignore the examination of colorectal cancer, which leads to poor treatment effect of colorectal cancer. So, what are the examination items of colorectal cancer? In response to this question, let the experts introduce the examination of colorectal cancer.

1. Laboratory tests for colorectal cancer include fecal occult blood test, hemoglobin, and carcinoembryonic antigen (CEA).

2. Endoscopic examination Fiberoptic colonoscopy is currently the most effective, safe and reliable method for diagnosing colorectal lesions. Most early colorectal cancers can be discovered by endoscopic examination. Therefore, anyone who has blood in the stool or changes in bowel habits and no abnormalities are found by rectal digital examination should consider sigmoidoscopy or fiberoptic colonoscopy.

3. X-ray barium double contrast imaging: This examination has greatly improved the diagnosis of early colorectal cancer and small adenomas compared to traditional barium enema X-ray examinations, but it still has false negatives for flat adenomas smaller than 0.8 cm and early colorectal cancer, so endoscopy is still needed to supplement it.

4. CT diagnosis: Due to the presence of feces and incomplete expansion of the large intestine, it is difficult for CT to detect colon mucosal abnormalities and lesions smaller than 1.0 cm in colorectal cancer examinations. Therefore, it cannot be used as a method for early diagnosis. However, it is of great significance for the staging of colon cancer and can help understand the relationship between the tumor and adjacent organs.

5. Ultrasound imaging examination The advantage of ultrasound is that it can show the structure of the tumor, the degree of invasion of the tumor on the layers of the anorectal anterior wall and the relationship with the surrounding organs, and whether there is metastasis to distant organs. Intestinal ultrasound is superior to CT in preoperative staging of rectal cancer. This is one of the examinations for colorectal cancer.

The above is the introduction of colorectal cancer examination, for your reference only. I believe that everyone has understood the causes of colorectal cancer. I hope everyone can do a good job in preventing colorectal cancer. In addition, if you have any questions about colorectal cancer examination, please consult online experts!