Related Experiment Videos
An isolated fourth ventricle in neurosarcoidosis: MRI findings
Volker Hesselmann1, Christoph Wedekind, Klaus Terstegge
1Department of Radiology, University of Cologne, Joseph Stelzmann Strasse 9, 50924 Cologne, Germany. Volker.Hesselmann@uni-koeln.de
Abstract:
We report on an isolated enlargement of the fourth ventricle in a patient with neurosarcoidosis which developed 3 years after the insertion of a ventriculo-atrial shunt. Repeated MRI images were obtained in a patient with known neurosarcoidosis between 1995 and 2000. Imaging findings were correlated to the medical course of the patient, who developed a hydrocephalus and a trapped fourth ventricle consecutively. The isolation was presumably due to granulomatous inflammation of the ependyma surrounding the fourth ventricular outlets. The isolated fourth ventricle was responsible for a deterioration of neurological status. Neurosarcoidosis is a severe complication in sarcoidosis patients. An isolated enlargement of the fourth ventricle is a rare complication in clinically deteriorated patients with neurosarcoidosis and ventricular drainage, which may require neurosurgical treatment.
Insights
A rare case of isolated fourth ventricle enlargement in neurosarcoidosis is presented. This complication, following shunt surgery, led to neurological decline and may necessitate surgical intervention.
Area of Science:
- Neurology
- Neurosurgery
- Radiology
Background:
- Neurosarcoidosis is a severe systemic inflammatory disease affecting the central nervous system.
- Ventriculo-atrial shunts are used to treat hydrocephalus in neurosarcoidosis patients.
- Granulomatous inflammation can affect various parts of the brain in neurosarcoidosis.
Observation:
- A patient with known neurosarcoidosis developed an isolated enlargement of the fourth ventricle three years after ventriculo-atrial shunt insertion.
- Magnetic Resonance Imaging (MRI) revealed a trapped fourth ventricle, suggesting obstruction of its outlets.
- The patient experienced a consecutive hydrocephalus and subsequent neurological status deterioration.
Findings:
- The isolated fourth ventricle was attributed to granulomatous inflammation of the ependyma surrounding the fourth ventricular outlets.
- This rare complication occurred in a clinically deteriorated patient with neurosarcoidosis and ventricular drainage.
- The enlargement of the fourth ventricle directly correlated with the worsening neurological condition.
Implications:
- Isolated fourth ventricle enlargement is a rare but serious complication in neurosarcoidosis patients with ventricular shunts.
- This condition can lead to significant neurological deterioration.
- Neurosurgical intervention may be required to manage this rare complication and improve patient outcomes.