Chilaiditi's and Ogilvie syndromes.

We read the interesting case study of interposition of the colon between the liver and the right diaphragm (Chilaiditi's sign) that was recently reported by Ruiz Pardo et al. in a 73-year-old male with epigastric pain, ectopic cholecystitis and segmental hepatic hypoplasia. The condition was managed by laparoscopic cholecystectomy with an uneventful outcome. This sign was first described in 1910 by the Greek radiologist Demetrius Chilaiditi. The incidence of Chilaiditi's sign in plain imaging studies is from 0.025 % to 0.28 % and may be reported by abdominal computed tomography in between 1.18 % and 2.40 % of cases.