Users' questions

What is CEA level for colon cancer?

What is CEA level for colon cancer?

The CEA is measured in the blood and the normal range is <2.5 ng/ml in an adult non-smoker and <5.0 ng/ml in a smoker. The most common cancers that elevate CEA are in the colon and rectum but it can be elevated with gastric, ovarian and other cancers.

Can CEA detect colon cancer?

A CEA test is often carried out after surgery to check carcinoembryonic antigen levels. As well as being a useful marker for colon cancer, CEA tests can be used to assess other types of cancer, including: rectal cancer.

Is the CEA test a perfect test for colorectal cancer?

CEA is not a perfect test for colorectal cancer because levels are high for only about 60% of people with colorectal cancer that has spread to other organs from the colon. In addition, other medical conditions can cause CEA to increase. A CEA test is most often used to monitor colorectal cancer for people who are already receiving treatment.

When to test for CEA levels in blood?

Your doctor will test your blood for CEA levels after you are diagnosed with colorectal cancer, during treatment, and during follow-up visits.

What does a blood test for colorectal cancer show?

Another blood test detects the levels of a protein called carcinoembryonic antigen (CEA). High levels of CEA may indicate that a cancer has spread to other parts of the body. CEA is not a perfect test for colorectal cancer because levels are high for only about 60% of people with colorectal cancer that has spread to other organs from the colon.

What does it mean if you have CEA in your body?

Large amounts of CEA in the body after cancer treatment or surgery indicate that the cancer is not lost. This may mean that cancer has spread to other parts of your body. Smoking can increase the amount of CEA in your body even without cancer.

How many colon cancer patients have Elevated CEA?

In a study of 358 patients who presented to surgery with a diagnosis of colon cancer, only 4% of patients with stage I disease had an elevated CEA (> 5 ng/mL), whereas 25%, 44%, and 65% of patients with stage II, III, and IV disease, respectively, had abnormal levels. [14]

Can a CEA test be used for colorectal cancer screening?

The poor reliability of this test in early colorectal cancer and the imperfect specificity in the normal population makes this test unsuitable for primary colorectal cancer screening. CEA has been studied extensively as a marker for disease recurrence in patients undergoing curative intent resection of a colorectal cancer primary.

What is the C stage of colon cancer?

Background: The American Joint Committee on Cancer (AJCC) has proposed the inclusion of pretreatment serum carcinoembryonic antigen (CEA) level (C-stage) into the conventional TNM staging system of colon cancer. We assessed the prognosis of various stages of colon cancer after such an inclusion.

Your doctor will test your blood for CEA levels after you are diagnosed with colorectal cancer, during treatment, and during follow-up visits.