Duodenal duplication cyst, prenatal diagnosis and postnatal excision

Introduction: Duodenal duplication cysts are rare congenital anomalies, usually originate in the 2 nd -3 rd portion of the duodenum. The prenatal echography diagnosis shows a cyst in the right hypochondrium, and we should perform a differential diagnosis with other pathologies. Prenatal diagnosis will allow a correct and precocious postnatal management. Elective excision is the treatment of election preventing the development of complications. Clinical case: We present a rare case of duplication of the first portion of the duodenum that required precocious excision because obstruction to gastric emptying.