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Jejunal Duplication Cyst

Case Detail

Anatomy: Gastrointestinal
Junewick
Joseph Junewick, MD FACR
Diagnostic Category: Developmental or Congenital
Created: over 7 years ago
Updated: over 7 years ago
Tags: PEDS
Modality/Study Types: CR US
Activities:
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History

2 day old former 34 week gestation infant with bilious emesis and failure to pass meconium.


Case Images


Diagnosis

Jejunal Duplication Cyst

Clinical Notes

Pathology – Intramural jejunal duplication cyst with associated segmental atresia.

Findings

CR – Marked distention of stomach and duodenal sweep. No distal bowel gas, peritoneal calcification or abdominal mass.

US – Ovoid cystic mass with hyperechoic inner layer and hypoechoic outer layer (bowel signature corresponding to the mucosa and muscularis layers respectively). The mass contains a fluid-sediment level.

Discussion

Duplication cysts occur on the mesenteric border of the bowel. Any segment of bowel can be involved; within the small bowel the ileum is the most common site followed by the jejunem and then the duodenum.. While the bowel and duplication cyst are each invested in their own mucosa, they typically share a common blood supply. Presenting symptoms vary by size and location but are usually related to pain, vomiting, palpable mass, bleeding or mass effect. Complications include volvulus, intussusception, peptic ulceration and malignant degeneration.

Reference

Tong SC, Pitman M, Anupindi SA. Ileocecal Enteric Duplication Cyst: Radiologic-Pathologic Correlation. Radiographics (2002); 22:1217-1222.

Contributor

Linda Woolpert, RRT RDMS



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