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NCI Dictionary of Cancer Terms

esophageal stent  listen  (ee-SAH-fuh-JEE-ul stent)

  A tube placed in the esophagus to keep a blocked area open so the patient can swallow soft food and liquids. Esophageal stents are made of metal mesh, plastic, or silicone, and may be used in the treatment of esophageal cancer.

Esophageal stent. Shows cancer blocking esophagus. Insets show  enlarged area of cancer and a stent placed in the esophagus to keep it open.