Lymphatic malformations are uncommon benign cystic lesions that typically present in the neck and axilla during infancy. They are more rarely observed in the abdomen and extremities. This study presents the case of a newborn infant who was admitted to the hospital with vomiting. While the cause of the vomiting was investigated, a complete intestinal obstruction developed, and an emergency surgical intervention was performed. During a laparotomy, a cystic mass originating from the mesentery was discovered. A lymphangioma mass resulting in intestinal obstruction during the third week of life was not considered in the differential diagnosis. (C) 2016 The Author. Published by Elsevier Inc. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).