Original Articles
Vol. 15 (2020)
https://doi.org/10.3269/1970-5492.2020.15.10
SMALL BOWEL METASTASIS FROM UNKNOWN PRIMARY MALIGNANT MELANOMA AS INCIDENTAL FINDINGS ON ABDOMINAL MRI
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All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.
Received: October 15 2025
Published: October 16 2025
Published: October 16 2025
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Melanoma of unknown primary site represents 1-8% of all melanomas and can be diagnosed by
exclusion after examining all possible origin areas of the primary tumor. We report the case of a
young lady referred to receive Magnetic Resonance Imaging (MRI) to investigate suspicious
hepatic lesions seen by ultrasound. Three years earlier, the patient underwent left inguinal
lymphadenectomy for metastatic melanoma with unknown primary site. No clinical evidence of a
primary tumor was found at physical examination (dermatological/ophthalmological) or at gastro
duodenoscopy/ileo-colonoscopy. CT scans performed annually were negative for melanoma lymph
node recurrence and distant metastases. At MRI sequences, we excluded the presence of liver
metastasis but we identified small bowel metastases from melanoma as incidental findings. The
patient has been subjected to exeresis of small bowel lesions and anatomopathological examination
confirmed the diagnosis made by imaging. At present, the primary tumor has yet to be identified.
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SMALL BOWEL METASTASIS FROM UNKNOWN PRIMARY MALIGNANT MELANOMA AS INCIDENTAL FINDINGS ON ABDOMINAL MRI. (2025). EuroMediterranean Biomedical Journal, 15. https://doi.org/10.3269/1970-5492.2020.15.10
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