|Comment: ||Elevation of CEA in colorectal cancer, but also in a variety of
noncolonic cancers (eg, pancreatic, gastric, lung, breast), as well
as in benign conditions (eg, IBD, liver cirrhosis, chronic lung disease, pancreatitis).
CEA > 20 highly suspicious for metastatic disease. After curative cancer resection, normalization
of elevated values expected within 1–2 months.|