Korean J Gastroenterol.  2017 Sep;70(3):141-144. 10.4166/kjg.2017.70.3.141.

Sporadic Non-ampullary Duodenal Adenoma Overriding the Cystic Dilatation of Brunner's Gland Hyperplasia

• Nam YJ
• Kim BW
• Kim JS
• Kim GJ

• KMID: 2390792
• DOI: http://doi.org/10.4166/kjg.2017.70.3.141

Abstract

Sporadic non-ampullary duodenal adenoma is uncommon and found incidentally during endoscopic examinations. Brunner's gland hyperplasia is commonly encountered during endoscopic examinations. Adenomas arising from Brunner's gland hyperplasia originate from the glandular cells, and the surface epithelia are usually intact. Little has been reported on adenomas originating from the surface epithelium that overrides Brunner's gland hyperplasia. Here, we report a case of a sporadic non-ampullary duodenal adenoma overriding the cystic dilatation of Brunner's gland hyperplasia.

Keyword

Brunner's gland hyperplasia; Adenoma; Endoscopic resection

MeSH Terms

Adenoma*
Dilatation*
Epithelium
Hyperplasia*

Figure

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  Fig. 1. Duodenoscopy of the lesion. (A) A nodular lesion (black arrows) is overriding a cystic lesion (white arrows). (B) Narrow band image shows more discrete lesion with different pit patterns (white arrows) compared with background cystic lesions.

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  Fig. 2. Endoscopic ultrasound of the lesion. A hypoechoic homogenous lesion is located at the submucosal layer (white arrows).

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  Fig. 3. Endoscopic mucosal resection of the lesion. (A) The lesion is located at the second portion of the duodenum. (B) Snaring was performed. (C) The lesion was removed completely. (D) The lesion was measured as 1.5×1.2 cm.

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  Fig. 4. Histopathology of the lesion (H&E stain, ×40). Adenoma is overriding the Brunner's gland and the two lesions are separated.

Reference

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