Background: It is general concept that malrotation is a disease of infancy. It has associated congenital abnormalities and requires the emergency operation if a symptom develops. This report represents the rare
case of malrotation in a schoolchild discovered by appendicitis as it happened.
Case Report: A 13-year-old schoolchild developed an acute left abdominal pain but X-ray and CT scan
reported no obvious abnormalities. He was found to have acute appendicitis by a contrast enema
examination.
Conclusions: In a child, the contrast enema examination is important when the diagnosis for acute abdominal pain is not turned on. As a more important thing, it is essential to consider malrotation in the
difficult diagnosis for acute abdominal pain in the older children.

Keywords: appendicitis, Malrotation, delayed diagnosis