gastric cancerListen to pronunciation(GAS-trik KAN-ser)Cancer that forms in tissues lining the stomach. Also called stomach cancer.More InformationWhat Is Stomach Cancer?Enlarge this image in new windowThe esophagus and stomach are part of the upper gastrointestinal (digestive) system.Search NCI's Dictionary of Cancer TermsStarts withContainsBrowse:ABCDEFGHIJKLMNOPQRSTUVWXYZ#