Duodenal carcinoid tumors are rare. Six cases of primary duodenal carcinoid tumors are presented. Analysis of these cases indicates that the radiographic appearance can vary from a benign-appearing intramural submucosal mass lesion to a large bulky ulcerating lesion. All cases in this series followed a benign course. One patient has survived over 30 years with proven regional and hepatic metastases. This patient showed regression of the duodenal lesion following embolization for control of severe hemorrhage.
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