Introduction: Duodenal neoplasms are relatively rare entity, most often being cases of duodenal invasion by malignant masses developed in the duodenopancreatic region. The malignant infiltration of duodenum can be made either by a primary malignant duodenal tumor, either by invasion of a neighborhood malignancies, the most common being pancreatic cancer. The differentiation between these two ma...

Mawe, Gary M., and Audra L. Kennedy. Duodenal neurons provide nicotinic fast synaptic input to sphincter of Oddi neurons in guinea pig. Am. J. Physiol. 277 (Gastrointest. Liver Physiol. 40): G226–G234, 1999.—We have investigated the existence of neural connections between the duodenum and the sphincter of Oddi (SO). Stimulation of duodenal myenteric fiber bundles elicited synaptic responses in ...

Introduction Congenital duodenal obstruction may be due to intrinsic or extrinsic lesions. Intrinsic duodenal obstruction may be caused by duodenal atresia, stenosis, diaphragm with or without perforation, or by a wind-sock web or membrane that balloons distally. Extrinsic duodenal obstruction may be caused by malrotation with Ladd’s bands or a preduodenal portal vein or annular pancreas. The a...

The distinctive motor activity of duodenal bulb is incompletely understood. Thus, in six conscious sheep the myoelectric activity of pyloric antrum, duodenal bulb and distal duodenum were continuously recorded in order to assess the myoelectric patterns of duodenal bulb and the relationships to adjacent regions before and after feeding or cholinergic drug administration. It was found that in du...

A 70-year-old man was admitted to our institution due to aggravation of blood-sugar level control and because an abdominal CT showed dilatation of the main pancreatic duct. Upper gastrointestinal endoscopy revealed a flat elevated tumor with central ulceration in the second portion of the duodenum. Subsequent duodenoscopy for a more detailed examination showed that the tumor had originated in t...

CONTEXT Optimal management of penetrating pancreaticoduodenal injuries and better outcomes are associated with simple, fast damage control surgery and shorter operative time. The performance of pyloric exclusion and tube duodenostomy has markedly decreased. However, there is still a trend toward their performance in cases of delay duodenal repair or severe pancreaticoduodenal injury. CASE REP...

Organ culture was used to compare gastrin and somatostatin release from cultured antral mucosa obtained from duodenal ulcer and non-ulcer (control) subjects. In response to dibutyryl cyclic AMP (DBCAMP) cultured antral mucosal explants from patients with a history of duodenal ulcer released a greater proportion of antral gastrin into the medium than did antral mucosal explants from non-ulcer su...

Among duodenal tumors, lymphangioma is relatively infrequent. In this case report, we describe the case of a 65-year-old Japanese man with duodenal lymphangioma diagnosed by esophagogastroduodenoscopy. Endoscopically, the tumor appeared as a soft submucosal tumor with white spots. When the white spots were grasped by biopsy forceps, milky liquid exuded from the tumor. Additionally, observation ...

Rhodes, Apsimon, and Lawrie (1966) have recently measured pH in the duodenal bulb for long periodsl* using two glass electrodes. By this method it is possible to maintain the distal electrode within the duodenal bulb for long periods but its exact position in the bulb cannot be determined. Over short _.... periods of time, however, the electrode can be located accurately by radiological methods...

Duodenal gastrointestinal stromal tumors (GIST) are per se infrequent and are exceptional in children or young adults. So far, only 2 cases of pediatric duodenal GISTs have been published. Here we report on the case of a 19-year-old female patient who was admitted in hemorrhagic shock due to arterial bleeding of a duodenal GIST located in immediate proximity to the major duodenal papilla. After...