Abstract
A 76-year-old woman presented to a hospital because of vomiting was found having stenosis at the descending part of duodenum by upper gastrointestinal endoscopy. The lesion was diagnosed as adenocarcinoma by a biopsy and she was referred to our hospital for the purpose of close examination and treatment. Abdominal contrast-enhanced CT scan showed wall-thickening of the descending part of duodenum and dilatation of the common bile duct. No tumors were demonstrated in the pancreas and the main pancreatic duct did not dilate. The patient was operated on with the preoperative diagnosis of primary duodenal cancer. During surgery, a 3-cm diameter tumor was seen at the descending part of duodenum. Accordingly subtotal stomach preserving pancreaticoduodenectomy was performed. The pathological diagnosis was pancreatic cancer arising in the ectopic pancreatic tissue existing from the submucosal layer of the duodenum to the proper muscular layer.
We present our experience with a case of ectopic pancreatic cancer developed in the duodenum, which is rare, together with a review of the literature.
