Omphalomesenteric Duct Anomalies in Children: A Multimodality Overview.

Area of Science:

• Embryology
• Pediatric Surgery
• Diagnostic Imaging

Background:

• The omphalomesenteric duct connects the fetal yolk sac and midgut.
• Failed resorption leads to anomalies like Meckel diverticulum, fistula, cysts, and polyps.
• Meckel diverticulum is the most common congenital GI anomaly, often asymptomatic but prone to complications.

Purpose of the Study:

• To review the anatomy, clinical features, and complications of omphalomesenteric duct anomalies in children.
• To describe differential diagnoses and imaging findings for these anomalies.
• To emphasize the importance of accurate preoperative diagnosis for optimal patient outcomes.

Main Methods:

• Review of literature on omphalomesenteric duct anomalies.
• Discussion of clinical presentations and complications.
• Analysis of imaging modalities including technetium 99m-pertechnetate scintigraphy, US, and CT.

Main Results:

• Omphalomesenteric duct anomalies present with nonspecific symptoms, mimicking other acute abdominal conditions.
• Hemorrhage is the most common complication of Meckel diverticulum, detected by scintigraphy.
• US and CT are vital for evaluating obstruction and inflammation, though diagnosis can be challenging.

Conclusions:

• Accurate preoperative diagnosis of omphalomesenteric duct anomalies is essential for effective management.
• Differentiating these anomalies from other umbilical disorders and acute abdominal conditions is critical.
• Understanding imaging findings aids in timely and appropriate treatment, especially in life-threatening presentations.