An Interesting Case of a Rare, Isolated, Non-communicating Enteric Duplication Cyst

Introduction: A very uncommon type of gastrointestinal duplication known as a completely isolated duplication cyst lacks communication with the rest of the normal intestine segment and has its own blood supply. Here, we present a case of an adult male with a non-communicating ileal duplication cyst. Case Presentation: A 40-year-old male was admitted to our hospital with the chief complaint of lower abdominal pain, distension, and a palpable mass that had been more evident within the last month. On physical examination, there was tenderness and a semi-mobile mass in the right lower abdomen. On abdominal contrast-enhanced computed tomography, a large cystic mass lesion measuring approximately 22.9×13.4 cm (average HU=18) with multiple enhancing septae was seen on the right side of the abdomen. Without altering the normal bowel or mesenteric anatomy, the entire cyst was removed. The patient was monitored after the procedure and showed no signs of any postoperative problems. Conclusion: When determining a differential diagnosis for abdominal cystic lesions, duplication cysts should be considered. As shown in our example, the resection of completely isolated duplication cysts can be safely performed without the need for intestinal resection.