Spinal extradural arachnoid cyst
Kudret Tureyen1, Nilgün Senol, Berkant Sahin
1Department of Neurosurgery, Medical Park Hospital, Hasim Iscan Cd. Fomara Meyani, No: 1 Osmangazi, Bursa, Turkey. tureyen@usa.net
Summary
Surgical removal of spinal extradural arachnoid cysts effectively resolves symptoms and restores neurological function. Complete cyst wall resection and dural defect repair offer a curative outcome for this rare condition.
Area of Science:
- Neurosurgery
- Spinal Surgery
- Radiology
Background:
- Spinal extradural arachnoid cysts are rare, expanding lesions that can cause progressive neural compression.
- Idiopathic arachnoid cysts are not linked to trauma or inflammation.
Observation:
- A 25-year-old male presented with a year of progressive back pain and radiating leg pain.
- MRI revealed a dorsal intraspinal extradural cystic lesion from T11 to L2.
- The patient underwent T11-L2 laminotomy with radical cyst wall resection and dural defect repair.
Findings:
- Postoperative MRI confirmed cyst resolution.
- Neurologic examination showed no residual sensory or motor deficits.
- Laminoplasty with titanium miniplates was performed for long segmental involvement.
Implications:
- Total cyst removal and dural repair are the primary treatments for symptomatic thoracolumbar spinal extradural arachnoid cysts.
- Surgical intervention provides a curative solution for these rare lesions.
- Early diagnosis and surgical management are crucial for preventing long-term neurological damage.
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