Data for: Mesenteric cyst as a presentation of chronic midgut volvulus in a 12 year old boy

Intestinal malrotation is a congenital anomaly of intestinal rotation and fixation that is generally symptomatic in the neonatal population. However, malrotation in an important minority is diagnosed long after infancy and is not manifested by the typical clinical manifestation of acute bilious vomiting with or without abdominal distension in an otherwise normal newborn. Here, we present a case of mesenteric cyst as a presentation of chronic midgut volvulus in a 12 year old male patient with intestinal malrotation.肠旋转不良（intestinal malrotation）是一类先天性肠道旋转与固定异常病变，在新生儿群体中通常会出现临床症状。不过，有相当比例的病例会在婴儿期之后很久才被确诊，且不会表现出正常新生儿伴或不伴腹胀的急性胆汁性呕吐这一典型临床表现。本文报告1例合并肠旋转不良的12岁男性患者，其慢性中肠扭转以肠系膜囊肿为首发临床表现。