The ileum was the most frequent portion of the intestine involved, but 13 cases of adenocarcinoma occurred in the duodenum or jejunum. The symptoms of small-bowel tumor are those of obstruction or ...

The first of three sections of the small intestine, the duodenum, produces large quantities of mucus to protect the intestinal lining from acid in the chyme. Measuring about 20 feet (6 meters ...

Notably, the patient had a healed scar in a section of the small intestine called the duodenal bulb. This suggested that the swallowed fish bone had probably pierced the man's intestinal wall and ...