Gastroduodenal artery aneurysm simulating a pancreatic neuroendocrine neoplasm: an important pitfall and potential misdiagnosis.

Mohammad Yasrab, Elliot K Fishman, Linda C Chu

Abstract readCase Reports

In one paragraph

Article in Radiology case reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0citing papers in PubMed

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1 · What the graph read from it

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2 · The registry

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3 · Its place in the literature

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0 citing papers in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

3 authors.

Mohammad YasrabDepartment of Radiology, Johns Hopkins University School of Medicine, 601 North Caroline Street, Baltimore, MD, 21287-0801, USA.

Elliot K FishmanDepartment of Radiology, Johns Hopkins University School of Medicine, 601 North Caroline Street, Baltimore, MD, 21287-0801, USA.

Linda C ChuDepartment of Radiology, Johns Hopkins University School of Medicine, 601 North Caroline Street, Baltimore, MD, 21287-0801, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Pancreatic neuroendocrine neoplasms (PanNENs) and visceral artery aneurysms can present with similar imaging features, posing diagnostic challenges. We report a case of a 33-year-old male with an incidental pancreatic neck/body lesion initially suspected to be a PanNEN based on arterial enhancement patterns seen on MRI. Endoscopic ultrasound was inconclusive, and biopsy was deferred pending further evaluation. A subsequent pancreas-protocol CT with advanced 3D reconstruction identified the lesion as a 10 mm gastroduodenal artery aneurysm (GDAA), associated with celiac artery stenosis caused by median arcuate ligament syndrome (MALS). This accurate diagnosis helped avoid an unnecessary biopsy, which could have caused serious complications. The case emphasizes the importance of considering vascular lesions in the differential diagnosis of pancreatic masses and demonstrates the critical role of thorough imaging evaluation in guiding safe and effective patient management.

Indexed as

AneurysmComputed tomographyGastroduodenal arteryMisdiagnosisPancreatic neuroendocrine neoplasmPancreatic neuroendocrine tumor

Identifiers

PMID41278414

DOI10.1016/j.radcr.2025.10.041

PMCPMC12639598

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.