Definition: Sialylated Lewis blood group carbohydrate antigen found in many adenocarcinomas of the digestive tract, especially pancreatic tumors.
a carbohydrate antigen assoc with digestive tract cancer; CA stands for Cancer-Associated
Other names Gastrointestinal Cancer Antigen; Antigen CA-19-9; Cancer Antigen, Gastrointestinal; CA-19-9, Antigen; CA 19 9 Antigen; Antigen, Gastrointestinal Cancer; Antigen, CA-19-9; Antigen, CA 19.9; Antigen, CA 19-9; Antigen CA 19 9; CA 19.9 Antigen; CA 19-9 Antigen