where they go in with a camera
and look at your esophagus
and stomach
and small intestines. this is the diagnosis
duodenal biopsy= normal, negative for parasites or other abnormalities.
antrum biopsy= normal gastric mucosa,negative for gastritis or helicobacter pylori infection,intestinal metaplasia,dysplasia,or malignancy.
EG junction biopsy=mild nonspecific chronic inflammatory changes at esophagogastric junction. negative for intestinal metaplasia,dysplasia, or malignancy.