肠系膜囊肿被定义为位于肠系膜中的良性腹腔肿瘤。这是一种罕见的疾病，在儿童中的发病率为1：20000。最常见的位置是小肠系膜。大多数患有肠系膜囊肿的患者没有症状，并且出现的症状如胃痛、腹部增大和腹痛是非特异性的。很少数的病例可能会出现急性腹部疼痛。本文描述了两例由肠系膜囊肿引起的肠扭转病例，一个是婴儿, 一个是儿童。婴儿和儿童之间的临床表现和组织病理学有所不同。婴儿表现为急性腹部疼痛，而儿童则没有出现急性腹部疼痛。我们在儿童中发现了乳糜样囊肿，而婴儿则出现了肠源性囊肿。在婴儿中发现了肠系膜囊肿引起的肠扭转。婴儿和儿童之间的肠系膜囊肿比较可以有助于特别是在婴儿中诊断肠系膜囊肿。 © 2022《中东消化疾病杂志》

Mesenteric cysts are defined as benign intra-abdominal tumors located in the mesentery. It was a rare disease with an incidence of 1:20000 in children. The most common location was in the small bowel mesentery. Most patients with mesenteric cysts are asymptomatic and have unspecific symptoms like dyspepsia, abdominal enlargement, and abdominal pain. The fewer others could present with an acute abdomen. We describe two cases of volvulus due to the mesenteric cyst; one case in an infant and one case in a child. There is a different clinical presentation and histopathology between infants and children. In the infant, it presented with an acute abdomen, while in the child acute abdomen was not present. We found a chylous cyst in the child while the enterogenous cyst was present in the infant. We found a volvulus due to the mesentery cyst in the infant. This comparison of mesenteric cysts between the infant and the child could help to diagnose mesenteric cysts, especially in infants.© 2022 Middle East Journal of Digestive Diseases.