A pictorial essay on cross-sectional imaging findings of pathologies in the second (D2) segment of the duodenum in adults.

Isil Basara Akin, Muhammed Enes Oguzturk, Bengisu Kandemir, Nihal Deniz Mentes, Canan Altay

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Review in Abdominal radiology (New York), 2025. 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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5 · Who and what money

Authors and funding

5 authors.

Isil Basara AkinDepartment of Radiology, School of Medicine, Dokuz Eylül University, Izmir, Turkey. isilbasara@gmail.com.

Muhammed Enes OguzturkDepartment of Radiology, School of Medicine, Dokuz Eylül University, Izmir, Turkey.

Bengisu KandemirDepartment of Radiology, School of Medicine, Dokuz Eylül University, Izmir, Turkey.

Nihal Deniz MentesDepartment of Radiology, School of Medicine, Dokuz Eylül University, Izmir, Turkey.

Canan AltayDepartment of Radiology, School of Medicine, Dokuz Eylül University, Izmir, Turkey.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The duodenum, the initial segment of the small intestine, is divided into four parts: the superior (D1), descending (second) (D2), horizontal (D3), and ascending (D4) segments. Despite its short length, the descending part (D2 segment) holds clinical significance due to its anatomical proximity to structures such as the gallbladder, right kidney, colon, and pancreas. This anatomical localization and contiguity give rise to various pathologies, including congenital, inflammatory, infectious, neoplastic, vascular, and traumatic conditions. Cross-sectional imaging modalities play a pivotal role in evaluating pathologies of the second (D2) segment of the duodenum. This article aims to provide a comprehensive overview of these pathologies and delineate their imaging characteristics.

Indexed as

Duodenal DiseasesDuodenumTomography, X-Ray ComputedAdultHumansComputed tomographyDuodenumMagnetic resonance imagingNeoplastic pathologiesNon-neoplastic pathologies

Identifiers

PMID39988596

DOI10.1007/s00261-025-04846-7

PMCPMC12331787

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