Abstract
The appearance of cystic Brunner's gland hamartomas (BGHs) on computed tomography (CT) or magnetic resonance imaging (MRI) has only been reported in a very small number of cases. Imaging diagnosis of cystic BGHs is usually difficult. We present a case of cystic BGH and characterize it in conjunction with previously reported cases. We found that the cysts of BGHs are smaller than those of other cystic duodenal lesions. The presence of cysts in BGHs can limit the differential diagnosis to cystic duodenal lesions, and our observations may assist others in the discrimination of cystic BGHs from other cystic duodenal lesions.
Highlights
The appearance of cystic Brunner’s gland hamartomas (BGHs) on computed tomography (CT) or magnetic resonance imaging (MRI) has only been reported in a very small number of cases
Characterization of the cysts in BGHs may facilitate their differentiation from other cystic duodenal lesions
We present a case of duodenal cystic BGH and review the cases reported to date, to determine the differences between the cysts of BGHs and those of other cystic duodenal lesions
Summary
A 39-year-old man who had been experiencing postprandial epigastric pain and vomiting for three days visited our emergency department. The results of his physical examination, laboratory tests, and abdominal sonography were unremarkable. An endoscopic examination of the upper gastrointestinal tract revealed a shallow gastric ulcer and a submucosal tumor in the second portion of the duodenum causing marked luminal narrowing (Fig. 1). An endoscopic biopsy of the duodenal tumor was performed and pathologic examination revealed that the cells and lobules of the Brunner’s glands were enlarged, but otherwise normal in appearance with no cellular atypia (Fig. 3). His abdominal pain and vomiting resolved, and the patient was discharged from the hospital.
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