|Classification and external resources|
Esophageal cancer (or oesophageal cancer) is a type of cancer which is found in the esophagus. There are many types, mostly squamous cell cancer (about 90–95% of all esophageal cancer worldwide) and adenocarcinoma (about 50–80% of all esophageal cancer in the United States).
Squamous cell cancer rises from the cells that line the upper part of the esophagus. Adenocarcinoma rises from glandular cells that are present at the lining of the esophagus and stomach.