Rimmelin A, Clouet P L, Salatino S, Kehrli P, Maitrot D, Stephan M, Dietemann J L
Department of Radiology 2 and Neurosurgery, University Hospital of Strasbourg, Hôpital de Hautepierre, France.
Neuroradiology. 1997 Mar;39(3):203-6. doi: 10.1007/s002340050394.
Extradural arachnoid cysts are uncommon expanding lesions in the spinal canal which may communicate with the subarachnoid space. Usually in the lower thoracic spine, they may cause symptoms by compressing the spinal cord or nerve roots. We report cases of thoracic and lumbar arachnoid cysts studied by cystography, myelography, CT and MRI. These techniques showed extradural cystic lesions containing cerebrospinal fluid, with variable communication with the subarachnoid space, causing anterior displacement and flattening of the spinal cord.
硬脊膜外蛛网膜囊肿是椎管内少见的扩张性病变，可与蛛网膜下腔相通。通常位于下胸椎，可因压迫脊髓或神经根而引起症状。我们报告了经囊肿造影、脊髓造影、CT和MRI检查的胸段和腰段蛛网膜囊肿病例。这些检查技术显示硬脊膜外囊性病变内含有脑脊液，与蛛网膜下腔的交通情况各异，导致脊髓向前移位并变扁。
