Lassoed liver: hepatic pseudo-fissure caused by ventriculoperitoneal shunt.

A 2-year-old child with a ventriculoperitoneal shunt and a shunt revision 18 months previously developed a shunt infection. A CT scan of the abdomen was performed soon after the shunt catheter was removed. A peculiar invagination in the liver was demonstrated along the same course of a recently removed intraperitoneal catheter, presumably caused by the catheter. There have been no reported cases of deformity and pseudo-fissure of the liver, which may mimic pathologic processes on ultrasound or CT, caused by a ventriculoperitoneal shunt.