barium swallow

{
  "id": "MLC-T-ONC-000916",
  "term": "barium swallow",
  "field": "Oncology and biomedicine",
  "definition": "A series of x-ray pictures of the upper gastrointestinal (GI) tract, including the throat, esophagus, stomach, and the first part of the small intestine (duodenum). The x-ray pictures are taken after the patient drinks a liquid that contains barium sulfate (a silver-white metallic compound). The barium sulfate coats and outlines the inner walls of the upper GI tract so they can be seen on the x-ray pictures. Also called upper gastrointestinal series and upper GI series.",
  "synonyms": [
    "upper gastrointestinal series",
    "upper GI series"
  ],
  "references": [
    "NCI Dictionary of Cancer Terms"
  ],
  "url": "https://mlchart.com/terminology/oncology/barium-swallow/"
}