Multiple spinal extradural arachnoid cysts occurring in a child: case report Wihasto Suryaningtyas, M.D., et al. - Symptomatic multiple extradural arachnoid cysts of the spine are extremely uncommon in children and have only rarely been reported. The authors report a case of multiple extradural spinal arachnoid cysts in a 14-year-old child who presented with signs of spinal cord compression. The disease affected the thoracic spine and extended from T-5 to T-10 with an underlying defect in the dura of the spinal canal that was predisposed to the formation of cysts... Neurosurgical Focus, 03/14/07