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Clinical characteristics and treatment strategies for idiopathic spinal extradural arachnoid cysts: a single-center experience

  • Clinical Article - Spine
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Abstract

Background

Idiopathic spinal epidural arachnoid cysts (SEACs) are relatively rare lesions with diverse clinical manifestations depending on the affected spinal region and nerve roots. To assess the relationship between clinical presentation and surgical outcome, we conducted a retrospective review of medical records and neuroimages from idiopathic SEAC patients.

Methods

Of 15 consecutive patients with idiopathic SEACs, 14 underwent surgical treatment at the Beijing Tiantan Hospital between January 2008 and July 2013. Case histories, clinical presentations, imaging findings, operative findings, and surgical outcomes were reviewed.

Results

Of the 15 patients, 5 were children (median age, 13 years) and 10 were adults (median age, 35 years). The male-to-female ratio was 4:1. The median disease duration was 1 year in children and 4 years in adults. The most common manifestations were progressive paraparesis (73.3 %) and radiculopathy (66.7 %). All pediatric lesions affected thoracic segments, while 80 % of adult lesions affected lumbar segments. Fourteen patients underwent microsurgical treatment, with cyst excision in nine (combined with fistula closure in four) and partial cyst excision in five (with fistula closure in three). No recurrences were observed during follow-up (average of 23 months). Excellent outcome was achieved in six cases, good outcome in four, fair in two, and poor in two.

Conclusions

Idiopathic SEAC mainly affect the thoracic segments in children and the lumbar segments in adults, and often results in progressive paraparesis and radiculopathy. Early surgical intervention is suggested for progressive symptomatic patients to restore neurological function.

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Conflicts of interest

All authors declare that they have no conflicts of interest.

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Authors and Affiliations

  1. Department of Neurosurgery, Beijing Tiantan Hospital, Captial Medical University, Beijing, 100050, China

    Wei Qi, Lei Zhao & Yulun Xu

  2. Department of Neuropathology, Beijing Neurosurgical Institute, Beijing Tiantan Hospital, Captial Medical University, Beijing, 100050, China

    Jingyi Fang

  3. Department of Neurosurgery, The First Hospital of Handan, Handan, 056002, China

    Xiangping Chang

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  1. Wei Qi
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  2. Lei Zhao
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  3. Jingyi Fang
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  4. Xiangping Chang
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  5. Yulun Xu
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Correspondence to Yulun Xu.

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Qi, W., Zhao, L., Fang, J. et al. Clinical characteristics and treatment strategies for idiopathic spinal extradural arachnoid cysts: a single-center experience. Acta Neurochir 157, 539–545 (2015). https://doi.org/10.1007/s00701-014-2278-3

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  • DOI: https://doi.org/10.1007/s00701-014-2278-3

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