Ileocecal Duplication Cyst Presenting As Bowel Obstruction in an Adult

Enteric duplication cysts are rare congenital malformations of the gastrointestinal tract, most commonly diagnosed within the first two years of life. In this report, we describe the case of a 56-year-old man who presented to the emergency department with abdominal pain and obstipation. A computed tomography scan revealed a cystic mass at the ileocecal transition point, which was concerning for malignancy. A laparoscopic right hemicolectomy was performed, and the pathology of the specimen revealed an enteric duplication cyst as well as six incidental neuroendocrine tumors. Despite their rare occurrence in adults, enteric duplication cysts should be included in the differential diagnosis of adults presenting with obstructive symptoms, and surgical resection should be strongly considered.