Bilateral Retrocerebellar Arachnoid Cysts Exerting Mass Effect and Associated With Cerebellar Tonsillar Ectopia in an Otherwise Healthy Adult
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- KILLEEN Tim
- Department of Neurosurgery, Wellington Regional Hospital
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- TROMOP-VAN-DALEN Chani
- Department of Neurosurgery, Wellington Regional Hospital
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- ALEXANDER Hamish
- Department of Neurosurgery, Wellington Regional Hospital
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- WICKREMESEKERA Agadha
- Department of Neurosurgery, Wellington Regional Hospital
書誌事項
- タイトル別名
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- —Case Report—
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Rarely, midline or unilateral posterior fossa arachnoid cysts (ACs) exert local mass effect resulting in the symptoms and signs of cerebellar and brainstem dysfunction. These cysts are sometimes seen in conjunction with cerebellar tonsillar ectopia (TE), although the relationship between these two entities is unclear. Bilateral ACs in the posterior fossa are virtually unprecedented. We describe the case of a 33-year-old man with a history of multiple minor head injuries observed to harbour asymptomatic, bilateral cerebrospinal fluid-density collections over the cerebellar hemispheres. Six years later, he presented with headaches, limb paraesthesias, and drop attacks. Computed tomography, magnetic resonance imaging, and operative findings during burrhole drainage of the lesions showed bilateral posterior fossa ACs, with associated cerebellar TE of 11 mm. The cysts partially recurred, necessitating reopening of the burrholes, after which the patient's symptoms resolved entirely. We then discuss the challenges in diagnosing this unusual case, the relationship between AC and TE, and the role of minor head injury in the symptomatic progression of AC.<br>
収録刊行物
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- Neurologia medico-chirurgica
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Neurologia medico-chirurgica 53 (4), 266-269, 2013
一般社団法人 日本脳神経外科学会
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詳細情報 詳細情報について
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- CRID
- 1390282680035240832
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- NII論文ID
- 10031151345
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- NII書誌ID
- AN00358613
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- COI
- 1:STN:280:DC%2BC3srot1alsw%3D%3D
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- ISSN
- 13498029
- 04708105
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- PubMed
- 23615422
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- Crossref
- PubMed
- CiNii Articles
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- 使用不可