First, you’ll meet with your doctor for a physical exam. You’ll talk about your symptoms, and your doctor may order tests such as an EGD (esophagogastroduodenoscopy)
, also called upper GI endoscopy. In this test, a lighted tube equipped with a tiny camera (endoscope) is inserted down the throat to look for changes to the tissue in the esophagus. During the procedure, a doctor can also remove tissue samples (biopsy) from the esophagus by inserting instruments through the endoscope to gather cells.