esophagram or barium swallow ap and lateral view showing esophagus for diagnosis gerd or gastroesophageal reflux disease and

abdominal ap barium swallow body stomach bowel ca cancer coats compound demonstrated diagnosis discomfort disease duodenum esophageal esophagus film gas gastric ulcer gastrointestinal gi health healthcare hospital human illness image intestine investigation jejunum lesion mass medicine organ patient radiology reflux sick small study surgery tract upper