It is possible to have elevated CA199 in gastric ulcers.
CA199 is often used as a gastrointestinal tumor marker for clinical tumor screening. Not only do tumor cells express this glycan antigen, but it is also found in the pancreas and bile duct epithelium of normal adults.
In addition to pancreatic cancer, liver cancer, gallbladder cancer, gastric cancer, ovarian cancer and other malignant tumors in the digestive system and other systems, its elevated level can also be seen in gastric ulcer, chronic pancreatitis and other acute and chronic inflammation of the digestive tract, as well as cholelithiasis, cirrhosis of the liver, renal insufficiency and so on.
Therefore, when CA199 is elevated, it is recommended to consult a doctor in a timely manner to further improve CT and other imaging and pathology examinations to identify the cause and standardize diagnosis and treatment.