Programmable ventriculoperitoneal shunt

Case contributed by Dr Jan Frank Gerstenmaier


Skull radiograph for shunt valve settings. VP shunt inserted for NP hydrocephalous.

Patient Data

Age: 70 years
Gender: Male

Ventriculoperitoneal shunt valve in place.


CT post shunt insertion

Right posterior approach EVD in situ, with the tip within the body of the right lateral ventricle. Dilated bilateral lateral, third and fourth ventricles is not significantly changed in size. Small amount of bifrontal pneumocephalus is in keeping with post operative status. No intracranial haemorrhage. Previous left frontal craniectomy. Region of encephalomalacia underlying the craniectomy is unchanged.


Outside MR prior to VP shunt insertion

Outside imaging. No report available. Appearances are in compatible with normal pressure hydrocephalous. Clinical picture matched.

Case Discussion

Normal pressure hydrocephalous is one indication where programmable ventriculoperitoneal shunt valves are of particular value. The control radiograph, magnified, will show the settings of the valve which can be correlated with the manufacturer's diagrams.

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Case information

rID: 31196
Published: 23rd Sep 2014
Last edited: 16th Jul 2018
Inclusion in quiz mode: Excluded

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