Example of the image seen from the
Most commonly, Barrett's esophagus is diagnosed during an upper endoscopy procedure, or also known as esophagogastroduodenoscopy (EGD).
The endoscopy procedure consists of a thin, flexible tube that is guided down the throat. The tube, known as an endoscope, has a video lens and light at its tip that transmits images to a video monitor nearby. This allows the doctor to visually inspect and capture images of the tissue of the esophagus.
There are thin endoscopes that allow the physician to pass an endoscope through the patient's nose to quickly and conveniently check the patient for Barrett's esophagus.
There are also small capsules with built-in cameras that the patient may swallow and have a physician screen them for Barrett's esophagus.