Clin Endosc.  2012 Nov;45(4):425-427.

A Case of Duodenal Duplication Cyst Manifested by Duodenal Polyp

• You HS
• Park SB
• Kim JH
• Lee HJ
• Jang SP
• Kim GH
• Song GA

Abstract

Duodenal duplication cyst is a rare anomaly, totaling only 4% to 12% of gastrointestinal duplications, and is usually encountered during infancy or in early childhood. Most are commonly located posterior to the first or second portion of the duodenum. Presenting signs and symptoms include vomiting, decreased oral intake, periumbilical tenderness, abdominal distention, obstructive jaundice, acute pancreatitis, and gastrointestinal bleeding. The traditional treatment of a duodenal duplication cyst has been complete surgical resection, but very few cases of endoscopic treatment have been reported in the literature. Here, we report a case of duodenal duplication cyst that was manifested by a duodenal polyp.

Keyword

Duodenum; Duplication cyst; Endoscopic resection

MeSH Terms

Duodenum
Hemorrhage
Jaundice, Obstructive
Pancreatitis
Polyps
Vomiting

Figure

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  Fig. 1 Endoscopic mucosal resection of the duodenal duplication cyst. (A) A polypoid lesion at the posterior side of superior duodenal angle. (B) Endoscopic ultrasonography shows an anechoic homogenous, oval lesion originating from the submucosal layer of the duodenum wall; the wall of the cystic lesion is shown as a three-layer structure. (C) Injection of saline with indigo carmine into the submucosa. (D) After the submucosal injection, the snare is closed to capture the lesion. The lesion is then resected with a standard snare excision technique. (E) The lesion is completely removed.

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  Fig. 2 Histopathologic features of the resected specimen. (A) Pathologic examination reveals that the lesion has cystic structure (H&E stain, ×40). (B) The cystic space is lined by columnar epithelial mucosa and has its own muscle layer (H&E stain, ×100).

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