... nodes.—Or, the cancer has grown through the outer layer of the esophagus. Radiation therapy (RAY-dee-AY-shun THAYR-uh-pee): The use of high-energy radiation from x-rays,gamma rays, neutrons, protons, ... http://www .cancer. gov/dictionary.Abdomen (AB-doh-men): The area of the body thatcontains the pancreas, stomach, intestines, liver,gallbladder, and other organs.Adenocarcinoma (A-den-oh-KAR-sih-NOH-muh): Cancer that begins ... series.Barrett esophagus (BA-ret ee-SAH-fuh-gus): Acondition in which the cells lining the lower part of the esophagus have changed or been replaced withabnormal cells that could lead to cancer of the esophagus. ...