NCIt definition : Endoscopic examination of the stomach.;
Alternative definition : NCI-GLOSS: Examination of the inside of the stomach using an endoscope, passed through
the mouth and esophagus. An endoscope is a thin, tube-like instrument with a light
and a lens for viewing. It may also have a tool to remove tissue to be checked under
a microscope for signs of disease.;
Codes from synonyms : CDR0000470253; CDR0000046389;