Asim Ishfaq, Shoaib Naiyar Hashmi.
Non-communicating extradural arachnoid cyst of dorsal spine.
J Coll Physicians Surg Pak Jan ;22(1):46-7.

Extradural arachnoid cyst in the spine is an uncommon cause of spinal cord compression in the paediatric population. Most reported cysts have communication with the intrathecal subarachnoid space through a small defect in the dura. The reported child had spinal cord compression caused by a large spinal extradural arachnoid cyst in dorsal spine that did not communicate with the intradural subarachnoid space. Surgical excision of cyst was done with recovery of neurological deficit postoperatively.

PakMediNet -Pakistan's largest Database of Pakistani Medical Journals - http://www.pakmedinet.com