A duodenal ulcer is a type of peptic ulcer that can appear in the duodenum. The duodenum is the upper part of the small intestine that’s connected directly to the stomach where it empties into the ...

Intraepithelial lymphocytosis is a complex immunological phenomenon. It commonly affects the gastrointestinal tract, where damage to the lining of tissue causes the number of lymphocytes (a type of ...

A perforated duodenal ulcer can lead to severe complications, as it allows bacteria from the intestine to escape into and infect the lining of the abdomen. The infection can lead to sepsis, which can ...

The small intestine is an important part of the digestive system, connecting the stomach to the large intestine. It stretches about 20 feet and coils to fit in your abdomen. The small intestine is ...