Thoracolumbar extradural arachnoid cysts: a study of 14 consecutive cases

Oh, Jae Keun; Lee, Dong Youp; Kim, Tae Yup; Yi, Seong; Ha, Yoon; Kh, Kim; Shin, Hyun Chang; Kim, Do Kyung; Yoon, Do Heum

doi:10.1007/s00701-011-1110-6

Cited by 34 publications

(52 citation statements)

References 25 publications

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“…A spinal extradural arachnoid cyst (SEAC), which is mostly found at the thoracic spine, is a rare disease, accounting for approximately 1% to 3% of spinal tumors 123456789). SEAC patients are generally men in their 20’s,3) 30’s, or 50’s 6).…”

Section: Introductionmentioning

confidence: 99%

“…SEAC patients are generally men in their 20’s,3) 30’s, or 50’s 6). SEACs are most commonly found in the middle or lower thoracic spine, and less frequently found in the lumbar region, although they can be detected at any lesion of the spine 1568)…”

Section: Introductionmentioning

confidence: 99%

“…The cause of this herniation, which is still under debate, may be either congenital or acquired 13456789). The neurological symptoms of a SEAC, including myelopathy, can be triggered by the mass effect of cord or root compression 1234567).…”

Section: Introductionmentioning

confidence: 99%

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Spinal Extradural Arachnoid Cyst

Woo

Son

Kang

et al. 2016

Korean J Neurotrauma

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A spinal extradural arachnoid cyst (SEAC) results from a rare small defect of the dura matter that leads to cerebrospinal fluid accumulation and communication defects between the cyst and the subarachnoid space. There is consensus for the treatment of the dural defect, but not for the treatment of the cyst. Some advocate a total resection of the cysts and repair of the communication site to prevent the recurrence of a SEAC, while others recommended more conservative therapy. Here we report the outcomes of selective laminectomy and closure of the dural defect for a 72-year-old and a 33-year-old woman. Magnetic resonance imaging of these patients showed an extradural cyst from T12 to L4 and an arachnoid cyst at the posterior epidural space of T12 to L2. For both patients, we surgically fenestrated the cyst and repaired the dural defect using a partial hemi-laminectomy. The patient’s symptoms dramatically subsided, and follow-up radiological images show a complete disappearance of the cyst in both patients. Our results suggest that fenestration of the cyst can be a safe and effective approach in treating SEACs compared to a classical complete resection of the cyst wall with multilevel laminectomy.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Spinal Extradural Arachnoid Cyst

Woo

Son

Kang

et al. 2016

Korean J Neurotrauma

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“…Spinal extradural arachnoid cyst (SEAC) is a rare cause of compressive myelopathy [1][2][3]. This lesion is reported to develop in any location, however most commonly occurs in posterior or posterolateral thoracic spine to the thoracolumbar area [4,5].…”

Section: Introductionmentioning

confidence: 99%

Laminectomy by craniotome for huge spinal extradural arachnoid cyst: a case report

et al. 2016

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Background: Spinal extradural arachnoid cyst is extremely rare. The longest SEACs that have been reported in previous studies involved no more than 5 spinal segments. This study presents a case of SEAC diagnosed from T9 to L4 and excised through a novel laminectomy/laminoplasty. Case presentation: A 22-year-old female presented with a 5-year history of progressive paraparesis and numbness in both lower limbs. MRI revealed posterolateral epidural cystic mass extending from T9-L4 with a length of 190 mm and width of 15 mm. The cyst was totally removed through surgery. The patient's symptom was completely relieved 1 year after the surgery. There was no recurrence, compression on the spinal cord, or kyphotic deformity based on MRI and CT taken 1 year after. Conclusion: Spinal extradural arachnoid cysts are relatively uncommon but surgically curable causes of myelopathy. For symptomatic patients, early surgical intervention is suggested for restoring neurological functions. Performing laminectomy by using crainotome is safe and efficient.

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“…A variety of cysts and benign neoplasms can compress the cord as well; they tend to arise intradurally. The most common of these are meningiomas, nerve sheath tumors, epidermoid cysts, and arachnoid cysts [2][3][4][5][6]. In general, disorders of the spinal cord itself are uncommon and difficult to treat effectively.…”

mentioning

confidence: 97%