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Case Reports
. 2015 Oct-Dec;10(4):371-3.
doi: 10.4103/1817-1745.174440.

Cerebellopontine angle arachnoid cyst associated with mirror movements

Esra Gurkas  1 , Buket Yucel Altan  2 , Kıvılcım Gücüyener  3 , Ebru Kolsal  3
Affiliations
Case Reports

Cerebellopontine angle arachnoid cyst associated with mirror movements

Esra Gurkas et al. J Pediatr Neurosci. 2015 Oct-Dec.

Abstract

Arachnoid cysts are benign developmental collections of cerebrospinal fluid (CSF). They constitute approximately 1% of intracranial masses. The cerebellopontine angle (CPA) arachnoid cysts are rare and often asymptomatic. The onset of symptoms and signs is usually due to the compression of the brain, cranial nerves and obstruction of CSF circulation. The major clinical symptoms for CPA arachnoid cysts were reported as headache, ataxia and 8(th) cranial nerve palsy. We report a patient with a CPA arachnoid cyst. He presented with cranial nerve palsies and mirror movements found in upper extremities. We postulated that CPA arachnoid cyst compressing the brain stem and the pyramidal decussation may lead to mirror movements. We conclude that mirror movements can be associated with CPA arachnoid cyst.

Keywords: Arachnoid cyst; cerebellopontine angle; mirror movement.

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Figures

Figure 1
Figure 1
Axial T2-weighted magnetic resonance imaging scan showing an arachnoid cyst located in the right cerebellopontine angle
Figure 2
Figure 2
Coronal T2-weighted magnetic resonance imaging scan showing the arachnoid cyst with the compression of the brain stem
See this image and copyright information in PMC

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