GERD is gastroesophageal reflux disease, in which stomach contents repeatedly flow back into the esophagus.
Common symptoms include heartburn, sour fluid coming up into the mouth, chest discomfort after meals, bloating, chronic cough, hoarseness, or a burning feeling in the throat.
Imaging helps in selected cases when swallowing is difficult, a structural problem is suspected, or doctors need to look for complications rather than simple reflux alone.
Fluoroscopy or other imaging may help in selected cases, especially when swallowing problems or structural concerns are part of the picture.
Treatment may include diet changes, medicines, and specialist follow-up depending on severity and complications.
This entry explains the condition. The next step is having a radiologist interpret your specific scan, not a general definition.