Ileocolic intussusception with enterogenous cyst: ultrasonic diagnosis.

Ultrasonography is becoming a common imaging modality for diagnosis of intus-susception in children. Its value depends on the strict observation of the ultrasonographic semiology: pseudokidney or doughnut configuration. The detection of other findings, especially if there is fluid, have to make one suspect a lead point whatever the age of the child. As our case has shown, the association of pseudokidney appearance with cystic liquid mass must be considered as an intussusception with an enterogenous cyst.