Staging helps describe where a cancer is located, if or where it has spread, and whether it is affecting other parts of the body.

Upper GI endoscopy is a procedure in which a doctor uses an endoscope—a flexible tube with a camera—to see the lining of your upper GI tract.

It is still a very experimental procedure, but it likely will be improved rapidly in the coming years and may become the standard approach...

Health technological innovations only have value if doctors and patients have access to them. Insurance companies label new products as investigational to justify the denial of care.