31. An example of PAS-D in use is in showing duodenal metaplasia in duodenal adenomas. 32. Other rare causes that have been reported include duodenal diverticulum, paraduodenal abscess, bile duct. 33. The agency approved use of the combination for active duodenal ulcers over a 28-day period. 34. The pancreatic duct and common bile duct enter the descending duodenum, through the major duodenal papilla. 35. Research into the placebo treatment of gastric and duodenal ulcers shows that this varies widely with society. 36. Sudden pain in the epigastrium to the right of the midline indicates perforation of a duodenal ulcer. 37. Transgastric or transduodenal approaches are used when the pseudocyst is next to the gastro-duodenal wall. 38. He died in 1992 in Croydon of a perforated duodenal ulcer and was survived by six children. 39. Once the larva is released from the egg, it enters the duodenal mucosa of the host. 40. His medical records state that he was hospitalized with an acute duodenal ulcer rather than a war injury.