Guest guest Posted September 24, 2005 Report Share Posted September 24, 2005 I know this mentions PANCREATIC cancer but I wouldn't panic because Phil's levels for Pancreatic came out high too and he definitely does NOT have it. If you read further down in the article you'll see they use this to determine liver and colon tumors too. It looks to indicate severity of disease. Don't panic this test turned out pretty bad for Phil but look at how well he has done! Sorry I didn't find this for you sooner and hope it gives you the answers you are looking for. Narice At A Glance Why get tested? To help differentiate between cancer of the pancreas and bile ducts and other conditions; to monitor response to pancreatic cancer treatment and to watch for recurrence When to get tested? When your doctor suspects that you have pancreatic cancer and during or following pancreatic cancer treatment Sample required? A blood sample drawn from a vein in your arm The Test Sample What is being tested? Cancer antigen 19-9 (CA 19-9) is a protein that exists on the surface of certain cells. CA 19-9 does not cause cancer; rather, it is a protein that is shed by the tumor cells, making it useful as a tumor marker to follow the course of the cancer. CA 19-9 is elevated in most patients with advanced pancreatic cancer, but it may also be elevated in other cancers, conditions, and diseases such as colorectal cancer, lung cancer, gall bladder cancer, gall stones, pancreatitis, cystic fibrosis, and liver disease. Very small amounts of 19-9 may also be found in healthy patients. How is the sample collected for testing? A blood sample is obtained by inserting a needle into a vein in the arm. How is it used? CA 19-9 is not sensitive or specific enough to be considered useful as a tool for cancer screening. Its main use is as a tumor marker: to help differentiate between cancer of the pancreas and bile ducts and other non-cancerous conditions, such as pancreatitis; to monitor a patient's response to pancreatic cancer treatment; and to watch for pancreatic cancer recurrence. CA 19-9 can only be used as a marker if the cancer is producing elevated amounts of it; if CA 19-9 is not initially elevated, then it usually cannot be used later as a marker. [back to top] When is it ordered? CA 19-9 may be ordered along with other tests, such as carcinoembryonic antigen (CEA), bilirubin, and/or a liver panel, when a patient has symptoms that may indicate pancreatic cancer, including abdominal pain, nausea, weight loss, and jaundice. If CA 19-9 is initially elevated in pancreatic cancer, then it may be ordered several times during cancer treatment to monitor response and, on a regular basis following treatment, to help detect recurrence. [back to top] What does the test result mean? Low amounts of CA 19-9 can be detected in a certain percentage of healthy people, and many conditions that affect the liver or pancreas can cause temporary elevations. Moderate to high levels are found in pancreatic cancer, other cancers, and in several other diseases and conditions. The highest levels of CA 19-9 are seen in excretory ductal pancreatic cancer -- cancer that is found in the pancreas tissues that produce food-digesting enzymes and in the ducts that carry those enzymes into the small intestine. This tissue is where 95% of pancreatic cancers are found. Serial measurements of CA 19-9 may be useful during and following treatment because rising or falling levels may give your doctor important information about whether the treatment is working, whether all of the cancer was removed successfully during surgery, and whether the cancer is likely returning. [back to top] Is there anything else I should know? Unfortunately, early pancreatic cancer gives few warnings. By the time a patient has symptoms and significantly elevated levels of CA 19-9, their pancreatic cancer is usually at an advanced stage. Quote Link to comment Share on other sites More sharing options...
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