[Primary torsion of omentum in childhood].

The authors report a case of a primary torsion of the omentum in an eleven-year old child who had been operated with a diagnosis of acute appendicitis. They take the opportunity to re-examine this idiopathic lesion with a review of world literature and case reports and they discuss the etiology, pathogenesis and pathology. The importance for the surgeon to inspect the omentum in all the so-called "negative" acute abdomen is enhanced.