十二指腸球部の孤立性Peutz‐Jeghers型ポリープの1例

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  • A case of solitary Peutz-Jeghers type polyp of the duodenal bulb.

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A 53-year-old male with a past history of pharyngeal cancer was visited our outpatient department for screening of the upper gastrointestinal tract. Upper gastrointestinal X-ray and endoscopic examinations showed a solitary pedunculated polyp with the appearance like brain gyri in the duodenal bulb. Endoscopic polypectomy was performed using a double-channel endoscope. The resected specimen was 16×12×6mm in size and histologically revealed a branching framework of the muscularis mucosae that accompanied by hyperplastic glandular epithelium. However, neither family history of gastrointestinal polyposis nor muco-cutaneous pigmentation was observed. No hamartomatous polyps exist in other sites of the gastrointesti-nal tract. The endoscopic examination done 8 years and 10 months earlier showed no lesions in the duodenal bulb. The lesion was diagnosed as a solitary Peutz-Jeghers type polyp, of the duodenum occurring and developing during this period.

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