Fact-sheet: Duplication cyst
Updated on 08/26/2020 at 3:18 PM
View all RADEOS cases associated with this fact-sheet
Definition
Rare congenital malformation arising on the mesenteric side, which can involve any segment of the digestive tract from mouth to anus (ileum, esophagus, and jejunum being frequent locations, the colon being the rarest)
These duplications consist of a supernumerary digestive segment and may be cystic or tubular, most being non-communicating with the adjacent segment of the digestive tract.
Clinical features
Nonspecific clinical symptoms, depending on the anatomical region involved and the possible occurrence of revealing complications.
- Obstruction
- Pain
- Midgut volvulus
Radiography
- Contrast opacification possible in cases of esophageal location
Ultrasound
The diagnosis is increasingly suspected antenatally.
Ultrasound analyzes the cyst wall:
- Hypoechoic peripheral layer continuous with the adjacent muscularis
- Hyperechoic inner layer
- Anechoic content,
search for associated anomalies, particularly vertebral and urogenital
MRI
- Fast sequences to analyze the segment
Management
Surgical treatment is the rule given the high risk of complications. Histological analysis of the surgical specimen confirms the diagnosis.
Differential diagnosis
- Ovarian torsion
- Meckel's diverticulum (on the antimesenteric side)