duodeno-, duoden-

(Latin: first part of the small intestine; based on duodecim, "twelve", because its length is approximately twelve finger-breadths)

Surgical removal of the antrum (a portion before the outlet of the stomach) and the ulcer-bearing part of the duodenum.
Spontaneous invagination of the gallbladder into the duodenum with formation of an opening between the two organs.
Excision or the surgical removal of the duodenum.

The duodenum is the first or proximal (nearest) portion of the small intestine, extending from the pylorus (opening in a vertebrate from the stomach into the intestine) to the jejunum (the portion of the small intestine that extends from the duodenum to the ileum), so called because it is about twelve finger widths in length.

The ileum is the last portion of the small intestine that communicates with the large intestine.

A radiograph of the duodenum (the first short section of the small intestine immediately beyond the stomach).
1. The surgical formation of an artificial connection between the duodenum and the jejunum.
2. A surgical operation that joins part of the duodenum and the jejunum with the creation of an artificial opening between them.
duodenopancreatectomy, pancreatoduodenectomy
Excision of the head of the pancreas along with the encircling loop of the duodenum.
1. The examination of the duodenum (first section of the small intestine) by means of an endoscope.
2. An examination of the interior of the duodenum using a flexible fiber-optic endoscope.

The device is inserted through the patient's mouth.

Surgical anastomosis (surgical connection) between the esophagus and the duodenum.
An examination of the lining of the esophagus, stomach, and upper duodenum with a small camera (flexible endoscope) which is inserted down the throat.
Endoscopy of the upper alimentary tract.

For endoscopy, a flexible opitical instrument (the endoscope) is inserted through the mouth and advanced into the esophagus, the stomach, and the duodenum (the first part of the small intestine).

Pathologicl changes (diseases, if any) are also evaluated by inflating air into the digestive tract.