Pseudoomphalocele: pitfall in fetal sonography.

Area of Science:

• Medical Imaging
• Fetal Medicine
• Pediatric Surgery

Background:

• Omphalocele is a congenital abdominal wall defect.
• Accurate prenatal diagnosis is crucial for appropriate management.
• Sonography is the primary imaging modality for fetal anomalies.

Observation:

• Fetal abdominal compression can create sonographic appearances similar to omphalocele.
• This mimicry can result from oligohydramnios (low amniotic fluid).
• Transient compression with normal fluid levels can also cause this appearance.

Findings:

• Four cases of pseudoomphalocele were identified.
• One case of true omphalocele was also presented for comparison.
• Pseudoomphalocele is characterized by fetal abdominal compression, not an abdominal wall defect.

Implications:

• Distinguishing pseudoomphalocele from true omphalocele is vital for prenatal counseling and surgical planning.
• Recognizing pseudoomphalocele can prevent unnecessary interventions.
• This highlights the importance of careful sonographic evaluation of the fetal abdomen.