2016
DOI: 10.13004/kjnt.2016.12.2.185
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Spinal Extradural Arachnoid Cyst

Abstract: 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 sele… Show more

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Cited by 34 publications
(36 citation statements)
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“…There is a consensus among investigators to endeavor to repair the dural defect during the surgery of a SEAC. 17) Although CT myelography and MRI are useful tools, the final diagnosis of a TC is not a radiological diagnosis; rather, it is a histopathological diagnosis, 1) in our cases, the diagnosis of SEACs was made during surgery. We found nerve tissue within the cysts.…”
Section: Discussionmentioning
confidence: 74%
See 1 more Smart Citation
“…There is a consensus among investigators to endeavor to repair the dural defect during the surgery of a SEAC. 17) Although CT myelography and MRI are useful tools, the final diagnosis of a TC is not a radiological diagnosis; rather, it is a histopathological diagnosis, 1) in our cases, the diagnosis of SEACs was made during surgery. We found nerve tissue within the cysts.…”
Section: Discussionmentioning
confidence: 74%
“…They appear to be extradural outpouchings of arachnoid membranes that communicate with the intraspinal subarachnoid space through small defect in the dura. 7 10 17) Tarlov cyst (TC) are predominantly found at the lumbosacral level of the spine but they are known to exist at all levels of the spine. Bifocal location of SEACs, thoracic and sacral, is exceedingly rarely reported in the literature.…”
Section: Introductionmentioning
confidence: 99%
“…Many spinal arachnoid cysts are idiopathic or congenital, whereas others may develop secondary to trauma, infection, or iatrogenic (lumbar puncture or surgery) causes. 6 10 15) Idiopathic or congenital arachnoid cysts are characterized by distinctive features on imaging studies and they may present with neurological signs and symptoms.…”
Section: Discussionmentioning
confidence: 99%
“…It can rarely be the cause of CSF leak if it ruptures into the extradural space 3 . A spinal extradural arachnoid cyst can be caused by a rare small defect of the dura that leads to CSF accumulation and communication defects between the collection and the subarachnoid space 4 . This is similar to meningeal diverticula in the thoracic spine as a result of protrusion of the arachnoid membrane through spontaneous dural tears and it can be associated with CSF leak 1,4 .…”
Section: Case Reportmentioning
confidence: 99%