Abstract
A 37-year-old man ungiong detailed examination of an elevated lesion in the duodenum was found in upper gastrointestinal endoscopic examination to have a giant pedunculated polyp covered with normal duodenal mucosa in the bulb. After CT, MRI and endoscopic ultrasonography, we conducted endoscopic polypectomy. The resected 35×25×25mm specimen was pathologically diagnosed as Brunner's gland hyperplasia. The pa-tient was discharged without complication at day 11 after the treatment and he has no sign of local recurrence for one year.
