Interdural spinal cyst; a rare clinical entity.

World Neurosurg · Apr 2016

Case Reports

Interdural spinal cyst; a rare clinical entity.

For more than 2 decades, dural spinal cysts have been broadly classified as extradural and intradural. ⋯ We suggest a revised classification of spinal dural cysts. This case highlights that, during surgery for spinal meningeal cysts, surgeons should bear in mind the possibility of an interdural cyst. This may help avoid inadvertent tears in the deep layers of such cysts, thus maintaining dural patency.

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- Jahangir Sajjad, Irfan Yousaf, Niamh Bermingham, and George Kaar.
- Department of Neurosurgery, Cork University Hospital, Cork, Ireland. Electronic address: jahangirsajjad@rcsi.ie.
- World Neurosurg. 2016 Apr 1; 88: 688.e9-688.e12.
BackgroundFor more than 2 decades, dural spinal cysts have been broadly classified as extradural and intradural.Case DescriptionA 40-year-old woman presented with radicular thoracic pain. Intraoperative findings showed the cyst to be present within the dura itself.ConclusionsWe suggest a revised classification of spinal dural cysts. This case highlights that, during surgery for spinal meningeal cysts, surgeons should bear in mind the possibility of an interdural cyst. This may help avoid inadvertent tears in the deep layers of such cysts, thus maintaining dural patency.Copyright © 2016 Elsevier Inc. All rights reserved.

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Interdural spinal cyst; a rare clinical entity.

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