Enteric duplication cyst in newborn

Enteric duplication cysts are rare congenital anomalies of the gastrointestinal tract. They can be identified from the neonatal period or in the first two years. The pathogenesis is still uncertain opening possibility to several theories correlated to its formation during the embryogenesis. The clinical manifestations are very varied depending on the location and size of the lesion. Diagnosis is initially performed by abdominal ultrasonography and confirmed by histopathological examination. In these patients, the treatment is always surgical. This case report refers to a neonate with ultrasounds in intrauterine period showing abdominal cystic masses and its evolution to the definitive diagnosis of enteric duplication cyst, after surgical treatment and confirmed by histopathological analysis.