Retrograde migration of ventriculoperitoneal shunt to the neck. Case report.

We report a patient, given a ventriculoperitoneal shunt at the neonatal period, who presented with a painless subcutaneous mass on his neck. Plain radiographs of the cervical region showed that the swelling was made up by a migrated and coiled peritoneal catheter. We briefly discuss the proposed mechanism for this complication and suggest that this occurrence must be taken into account at the time of evaluating a patient with shunt malfunction.