[Neonatal intestinal obstruction due to cecal duplication]

Cecal duplications are rare, representing 0.4% of all gastrointestinal duplications, with few cases reported in the literature.

A 48 hours-old newborn presented with bilious vomiting and abdominal distension; the ultrasound revealed a cystic mass in the right abdomen; ileocolic resection was performed with end to end anastomosis. Microscopy confirmed cecal duplication cyst.

In patients with intestinal obstruction, contrast enema allows differential diagnosis with other colonic pathologies in the newborn; when the cecal duplication cyst is connected to the lumen of the colon, enema reveals a filling defect, and cecal duplication can be suspected. Although cystic lesions are asymptomatic, they should be excised when detected to prevent complications.