CA19-9
CA19-9
CA19-9 (pronounced as "C-A-Nineteen-Nine"), also known as Carbohydrate Antigen 19-9, is a tumor marker often used in the medical field, particularly in the diagnosis and management of pancreatic cancer.
Etymology
The term "CA19-9" is an abbreviation for "Carbohydrate Antigen 19-9". It was first identified in the late 1970s and early 1980s during research into colorectal cancer and pancreatic cancer. The "19-9" refers to the specific identifying number of the antigen.
Usage
CA19-9 is primarily used as a tumor marker in the diagnosis and management of pancreatic cancer. It is not used as a standalone diagnostic tool, but rather in conjunction with other tests and procedures. Elevated levels of CA19-9 can indicate the presence of pancreatic cancer, but can also be elevated in other conditions such as gallstones, pancreatitis, and cirrhosis.
Related Terms
- Tumor marker: A substance found in the body when cancer is present.
- Pancreatic cancer: A type of cancer that starts in the pancreas.
- Colorectal cancer: A type of cancer that starts in the colon or rectum.
- Gallstones: Hardened deposits in the gallbladder that can cause pain and other symptoms.
- Pancreatitis: Inflammation of the pancreas.
- Cirrhosis: Late stage scarring of the liver caused by various liver diseases and conditions.
External links
- Medical encyclopedia article on CA19-9
- Wikipedia's article - CA19-9
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