We describe three cases of adult intussusception in which ultrasonography p
rovided the correct preoperative diagnosis. Patients underwent ultrasonogra
phy to investigate nonspecific acute abdominal pain; intussusception was no
t suspected. In all cases, the sonographic pattern was typical of intussusc
eption and ultrasonography was the only diagnostic study. Bowel ischemia wa
s not found at surgery in any patient.