Chilaiditi syndrome is a rare abnormality, uncommon in children, whith an incidence increasing with the age, ranging from 0.025 per cents to 0.28 per cents in the general population usually affecting males. The patients are usually asymptomatics and the syndrome is incidently discover through radiologic exams. However, abdominal pain and distention, nauseas, vomits and changes in intestinal habits, and even intestinal obstruction can occur. The authors report a case of a patient with Chilaiditi's syndrome associated to megastomach, megaduodenum and megacolon