Duodenal duplication. Is ultrasound appearance enough to confirm the diagnosis?

A case of duodenal duplication is reported. It is a rare anomaly and is commonly discovered during infancy. Symptoms of partial obstruction dominate the clinical picture. Abdominal ultrasound (US) seems to be the best method to confirm the diagnosis especially when the two-layer pattern is present. In our case the radiological evaluation apart from US comprised plain film of the abdomen, upper gastrointestinal series and CT scan. The diagnosis of duodenal duplication made by US examination as well as by gastrointestinal series and CT scan was confirmed surgically. We consider that when at US the sign of two-layer pattern is present there is no need for further radiological evaluation for alimentary tract duplication.