Assume shunt malfunction in patients with suggestive features regardless of findings on imaging
Revisions are extremely common, low threshold to contact Neurosurgery<unk>  shunt drainage
Ventriculoperitoneal shunt complications
Ventriculoperitoneal shunt obstruction
Ventriculoperitoneal shunt mechanical failure
Ventriculoperitoneal shunt overdrainage 
Ventriculoperitoneal shunt infection
Ventriculoperitoneal shunt overdrainage
Separate, noncommunicating CSF accumulations may develop within a ventricle
Brain herniation syndromes