Sigmoid volvulus occurs rarely in infants and children as compared with adults. When this condition does occur in the pediatric age group, the plain film roentgenographic findings are usually nonspecific and a barium enema examination is required for preoperative diagnosis. This report describes a case of acute sigmoid volvulus in a 7 year old girl in whom the diagnosis was strongly suspected on the basis of the plain film roentgenograms. The roentgenographic features and the management of this condition are discussed.