Endoscopy 2025; 57(S 02): S320-S321
DOI: 10.1055/s-0045-1805787
Abstracts | ESGE Days 2025
ePosters

Duodenal Neuroendocrine Tumor Adjacent to a Duplication: A Rare Case in a 64-Year-Old Female Patient

Authors

  • S A Alioua

    1   The department of Hepatology and Gastroenterology, Beni Messous Hospital, Algiers, Algeria
  • A Balamane

    1   The department of Hepatology and Gastroenterology, Beni Messous Hospital, Algiers, Algeria
 

Background: Duodenal neuroendocrine tumors (NETs) are rare, particularly in the context of congenital anomalies such as duodenal duplication. This case report discusses a 64-year-old female patient with hepatic metastases of unknown origin, in whom an endoscopic ultrasound evaluation revealed a duodenal NET associated with a duodenal duplication.

Case Presentation: The patient presented with hepatic metastases without an identifiable primary tumor. Upper gastrointestinal endoscopy (FOGD) identified a large polypoid lesion approximately 25-30 mm in the second part of the duodenum (DII), exhibiting lymphangiectasias and telangiectasias. Endoscopic ultrasound evaluation showed a hyperechoic neuroendocrine tumor measuring 24 x 13 mm, originating from the submucosal layer of DII, with an associated duodenal duplication measuring approximately 60 mm in length. No abnormalities were found in the common bile duct, pancreas, or vascular structures.

Conclusions: This case emphasizes the crucial role of endoscopic ultrasound in the evaluation of submucosal lesions, particularly when suspecting neuroendocrine tumors. The rare diagnosis of duodenal duplication in adulthood further highlights the need for thorough imaging in similar clinical presentations. Inclusion of endoscopic ultrasound images will enhance the understanding of the findings and their implications for management.



Publication History

Article published online:
27 March 2025

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