What Is an Upper GI Series? An upper GI series is a group of X-ray tests that look at your GI tract -- your food pipe (the esophagus), stomach, and the first part of your small intestine (the duodenum ...

Study, which followed more than 450,000 individuals in Sweden after lower or upper gastrointestinal biopsy, suggests that symptoms of IBD may start significantly before disease shows up on biopsy ...