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NCI Dictionary of Cancer Terms

contrast esophagram  listen  (KON-trast ee-SAH-fuh-gram)

  A series of x-ray pictures of the esophagus taken after a patient drinks a liquid containing barium sulfate (a form of the silver-white metallic element barium). The barium sulfate coats and outlines the inner wall of the esophagus so that it can be seen on the x-ray pictures. Also called esophagram.

Barium swallow; shows barium liquid flowing through the esophagus and into the stomach.