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Home >Information for Patients > Dictionary Index

Dictionary of Cancer Terms

View in Spanish: Series gastrointestinales superiores

Upper GI series (UH-per SEER-eez)
A series of x-ray pictures of the esophagus, stomach, and duodenum (the first part of the small intestine). The x-ray pictures are taken after the patient drinks a liquid containing barium sulfate (a form of the silver-white metallic element barium). The barium sulfate coats and outlines the inner walls of the upper gastrointestinal tract so that they can be seen on the x-ray pictures. Also called upper gastrointestinal series.



 
 
Source: National Cancer Institute Dictionary of Cancer Terms, available at www.cancer.gov/dictionary.