[A case of mature intestinal malrotation with cecal volvulus].

We report an uncommon case of an elderly patient with cecal volvulus caused by intestinal malrotation. We performed lower gastrointestinal endoscopy on an 84-year-old man with a chief complaint of abdominal distention and fever. However, emergency surgery had to be performed because intestinal perforation had occurred. The patient had cecal volvulus associated with incomplete rotation of the intestine. Subsequently, the patient developed multiple organ failure and died 2 days after the surgery. Despite its low incidence, we believe that the possibility of intestinal malrotation should be considered in elderly patients who present with abdominal distention for which the definitive diagnosis cannot be easily obtained.