# Parenchyma-sparing resection for a complex jejunal duplication with a shared mesenteric blood supply: a case report

## TL;DR

A 2-year-old boy with a complex jejunal duplication underwent a partial, parenchyma-sparing surgery to safely remove the symptomatic part while preserving blood supply.

## Contribution

The paper introduces a tailored surgical approach for complex GI duplications with shared blood supply, emphasizing long-term surveillance.

## Key findings

- A partial parenchyma-sparing resection safely managed a complex jejunal duplication with shared mesenteric blood supply.
- The patient experienced complete symptom resolution and uneventful recovery after the procedure.
- The approach highlights the importance of long-term surveillance for retained segments in such cases.

## Abstract

Gastrointestinal (GI) duplication cysts present significant diagnostic and surgical challenges, particularly with complex anatomy. We report a 2-year-old male with chronic obstructive symptoms caused by a mixed-type jejunal duplication. While initial ultrasound was equivocal, contrast-enhanced computed tomography delineated a cystic mass on the mesenteric border, guiding surgical planning. Intraoperatively, a shared mesenteric blood supply with the native jejunum precluded complete resection. A parenchyma-sparing partial excision of the symptomatic, non-communicating portion was performed, preserving the fused communicating segment. Histology confirmed the diagnosis. The patient’s recovery was uneventful, with complete symptom resolution at follow-up. This case illustrates that for complex GI duplications, a tailored, parenchyma-sparing resection is a safe and effective strategy when vascular integrity is at risk, shifting the clinical focus from acute management to the necessity of long-term surveillance for the retained segment.