Symptomatic Long-segment Extradural Arachnoid Cyst: An Interesting Case Report with Literature Review

Journal of Spinal Surgery(2024)

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摘要
Abstract Extradural spinal arachnoid cysts are rare lesions which when become symptomatic lead to progressive neurological signs and symptoms. The spectrum of presentation is myriad and surgical intervention is reserved for symptomatic patients. A 17-year-old boy presented with features of progressive spastic paraparesis for the last 5 months. Initial radiological work-up was suggestive of thoracolumbar extradural cystic lesion. Computed tomography myelography was not able to detect the dural defect. He underwent surgical excision of the cyst under intraoperative neuromonitoring. The lesion was excised in single piece and the intradural communication was noticed along an exiting nerve root. The dural defect at the mid-length of the lesion was identified and closed watertight. Significant improvement in the sensory-motor complaints was noted in the postoperative period. The identification of the dural defect and ensuring its closure along with the complete removal of the cyst is the key to avoid recurrence and is the standard procedure of choice.
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