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Cerebellopontine angle arachnoid cyst containing ectopic choroid plexus—case report

Acta Neurochirurgica volume 152, pages 881–883 (2010)Cite this article

Abstract

We present a rare and interesting case of a cerebellopontine angle cyst containing ectopic choroid plexus tissue in a 26 year-old female. Surgical resection was performed, and histological examination confirmed the presence of choroid plexus in the cyst wall. This is the first reported case of ectopic choroid plexus at the cerebellopontine angle in an adult. We present the case and review the literature.

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Affiliations

  1. Department of Neurological Surgery, John Radcliffe Hospital, Oxford, OX3 9DU, UK

    William G. B. Singleton, Tim Lawrence, Alex L. Green, Alex Jeans & Richard S. C. Kerr

Authors
  1. William G. B. Singleton
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  2. Tim Lawrence
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  3. Alex L. Green
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  4. Alex Jeans
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  5. Richard S. C. Kerr
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Correspondence to William G. B. Singleton.

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Comment

Arachnoid cyst, generally speaking, remains an intriguing condition. In this unusual location, the presence of a small ectopic nest of choroid plexus gives a sound pathophysiological explanation to the growing of the cyst. Post-infectious or post-inflammatory septation of the subarachnoid spaces could be another hypothesis but more difficult to prove. According to the review presented by the authors, all these arachnoid cysts associated with ectopic choroid plexus were symptomatic, and the indication to operate was thus straightforward; complications were not reported, and prognosis is excellent.

Benedict Rilliet

Switzerland

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Singleton, W.G.B., Lawrence, T., Green, A.L. et al. Cerebellopontine angle arachnoid cyst containing ectopic choroid plexus—case report. Acta Neurochir 152, 881–883 (2010). https://doi.org/10.1007/s00701-009-0516-x

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  • DOI: https://doi.org/10.1007/s00701-009-0516-x

Keywords

  • Cerebellopontine angle
  • Cyst
  • Ectopic choroid plexus
  • Arachnoid cyst