CA19-9 Test: Introduction, Test Method, Normal Range, Clinical Significance, and Keynotes
Introduction CA19-9, also known as carbohydrate antigen 19-9, is a tumor marker commonly used in clinical practice. It is a type of glycoprotein, specifically a mucin-like antigen, that is produced by various types of cells, including epithelial cells lining the gastrointestinal tract, gallbladder, and pancreatic …