Abstract
Interposition of the intestine, mostly the large intestine, into the right subphrenic space is known as Chilaiditi's syndrome. This is a case report of a 79-year-old man with the complaint of abdominal pain. We diagnosed this case as Chilaiditi's syndrome with ileus, from a chest X-ray which showed an intestinal gas-filled loop in the right upper quadrant. An abdominal X-ray showed air-fluid levels and marked distension of the bowel loops. A radiograph with contrast medium was taken using a long tube. Strangulation due to incarceration of the small intestine was observed. To avoid a recurrence of this condition, an operation was undertaken. This case suggests the necessity of identifying the interposing organ and whether it is a transient or persistent type.