How much does colorectal cancer gene testing cost

How much does a rectal cancer gene test cost? According to relevant experts, KRAS gene testing usually costs between 500 yuan and 900 yuan (depending on the price approved by different regions), and the report is usually available in 5 to 7 days (no more than 1 week). Let's take a look at the examination methods for rectal cancer.

1. Serum carcinoembryonic antigen (CEA) test: It is not specific for the detection and diagnosis of rectal cancer. The increase in the value is often related to the tumor growth. It can return to normal after complete resection of the colon tumor. It can increase a few weeks before recurrence. Therefore, it is helpful for estimating prognosis, monitoring efficacy and recurrence. This is a common method for diagnosing rectal cancer.

2. B-ultrasound scan, CT or MRI examination: None of them can directly diagnose rectal cancer, but they are valuable in determining the location, size, relationship with surrounding tissues, lymph node and liver metastasis of the tumor. They are mainly used to understand the degree of tumor infiltration into the intestine and whether there is local lymph node or distant organ metastasis. They can be used for preoperative staging and postoperative review.

3. Stool examination: By detecting tumor M2 pyruvate kinase (M2-PK) in the stool, it was found that the M2-PK value of patients with rectal cancer was 14 times that of normal people. Therefore, fecal tumor M2-PK detection provides a promising new method for rectal cancer screening.

4. X-ray examination: This method of diagnosing rectal cancer includes barium meal examination of the entire digestive tract and barium enema examination. It can observe the overall shape of the colon, whether there are multiple polyps and multiple cancer foci, and provide a basis for surgical treatment of patients with colon cancer. The initial signs of the disease may be intestinal wall stiffness and mucosal destruction, followed by constant filling defects and intestinal stenosis. Double contrast examination of air-barium is more effective.