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Endoscopic studies of polypoid lesions on the duodenal bulb



Endoscopic studies of polypoid lesions on the duodenal bulb



Gastroenterological Endoscopy 26(9): 1489-1496



Polypoid lesions in the duodenal bulb were observed in 106 cases during the past 10 yr at the rate of 3.3%. Endoscopically they were classified into 4 types: diffuse fine granular lesion and small, medium or large polypoid lesion. Endoscopic studies were carried out in 83 cases of small, medium and large polypoid lesions. Average patient age was 57.4 yr of age; 76% were > 50 yr of age. The male:female ratio was 45:38. Only a single polypoid lesion was found in 81% of cases. Most lesions (86%) were < 10 mm in diameter. According to the Yamada's classification, 81% of cases showed sessile type I or II. Of these lesions, 92% had a smooth surface appearance, 74% showing neither central redness nor depression; only 8% of the polypoid lesions had a granular or nodular surface. Histological diagnosis was obtained by endoscopic biopsy, endoscopic polypectomy and surgical resection in 17 cases. Seven cases showed Brunnerioma or hyperplasia of Brunner's glands. It evidently is necessary to make an accurate histological diagnosis to study the details of duodenal polypoid lesions.

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Accession: 005359626

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