A board - certified general surgeon and surgical oncologist, Kevin Roggin, MD, specializes in the surgical treatment of complex upper gastrointestinal tract and hepato - pancreato - biliary (HPB) cancers (stomach, pancreas, liver, gallbladder, gastrointestinal stromal tumors (GIST), sarcomas, extrahepatic bile duct cholangiocarcinoma). (uchospitals.edu)
The tests may include X-rays of the upper gastrointestinal tract. (babycenter.com)
Although the vast majority of research on the gut microbiome has focused on bacteria in the large intestine, a new study — one of a few to concentrate on microbes in the upper gastrointestinal tract — shows how the typical calorie - dense western diet can induce expansion of microbes that promote the digestion and absorption of high - fat foods. (sciencedaily.com)