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eISSN: 2581-9615 || CODEN: WJARAI || Impact Factor 8.2 ||  CrossRef DOI

Research and review articles are invited for publication in October 2026 (Volume 32, Issue 1) Submit manuscript

GASTRIC OUTLET OBSTRUCTION REVEALING DUODENAL METASTASIS OF MALIGNANT MELANOMA

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  • GASTRIC OUTLET OBSTRUCTION REVEALING DUODENAL METASTASIS OF MALIGNANT MELANOMA

Nihad Lachkar *, Maha Lahkim Bennani and Yosra Aouni

Hepato-gastroenterology Department, Roanne Hospital Center, Roanne, France.
* Corresponding Author
ORCID Details
Nihad LACHKAR: https://orcid.org/0009-0002-5039-3095
Maha Lahkim Bennani: https://orcid.org/0009-0007-6363-769X

Case Study

 

World Journal of Advanced Research and Reviews, 2026, 32(01), 1947–1952

Article DOI: 10.30574/wjarr.2026.32.1.2769

DOI url: https://doi.org/10.30574/wjarr.2026.32.1.2769

Received on 21 September 2026; revised on 27 October 2026; accepted on 29 October 2026

Background: Gastrointestinal metastases from malignant melanoma are relatively frequent at autopsy but are rarely diagnosed during life due to nonspecific clinical presentation. Duodenal involvement is particularly uncommon [1-2].
Case presentation: We report the case of a patient presenting with acute vomiting and gastric outlet obstruction. Imaging revealed circumferential thickening of the third portion of the duodenum. Endoscopy showed a stenosing ulcerated lesion, and a self-expandable metallic stent was placed for palliation. Histopathological and immunohistochemical analyses confirmed duodenal metastasis of malignant melanoma.
Conclusion: Duodenal metastasis of melanoma is rare and often diagnosed at an advanced stage. Endoscopic palliation represents an effective therapeutic option in selected patients.

Duodenum, Endoscopy, Gastric outlet obstruction, Malignant melanoma, Metastasis.

https://wjarr.com/sites/default/files/fulltext_pdf/WJARR-2026-2769.pdf

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Nihad Lachkar, Maha Lahkim Bennani and Yosra Aouni. GASTRIC OUTLET OBSTRUCTION REVEALING DUODENAL METASTASIS OF MALIGNANT MELANOMA. World Journal of Advanced Research and Reviews, 2026, 32(01), 1947–1952. Article DOI: https://doi.org/10.30574/wjarr.2026.32.1.2769

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