Fortuna A, Mercuri S
Acta Neurochir (Wien). 1983;68(3-4):289-314. doi: 10.1007/BF01401186.
18 cases of benign intradural spinal cyst (9 arachnoidal, 2 neuroepithelial, 7 endodermal) are reported and compared with 94 cases (67 arachnoidal, 7 neuroepithelial, 20 endodermal) obtained from the literature. Arachnoidal intradural cysts (AIC) have no sex preference, occur at around the fourth-fifth decades of life and have characteristic intermittent root symptoms. They prefer the thoracic level and the posterior position. (Myelography images the cystic cavity (diverticular form). Surgical removal is usually easy. Neuroepithelial intradural cysts (NIC) are rare, have a 2:1 predilection for females and occur after the fourth decade. They have a serious clinical course similar to intramedullary or extramedullary tumours. They prefer the conus-cauda and the anterolateral positions. They often give rise to manometric block and to albuminocytological dissociation. There may be substantial adhesions to the cord and roots and the intramedullary variety presents no clear plane of cleavage. Endodermal intradural cysts (EIC) have a 2:1 predilection for males and prefer the second and third decades. They may have an intermittent or serious course with signs of root and cord impairment. They prefer the cervical segment (in the anterior position) and the conus-cauda (in the posterior position). As a rule they present manometric block and albuminocytological dissociation. Their frequent tough adhesions to the roots and cord demand special care during their removal.
报告了18例硬脊膜内良性囊肿（蛛网膜囊肿9例、神经上皮囊肿2例、内皮囊肿7例），并与文献报道的94例（蛛网膜囊肿67例、神经上皮囊肿7例、内皮囊肿20例）进行比较。蛛网膜下腔硬脊膜内囊肿（AIC）无性别差异，发病年龄多在40至50岁左右，具有典型的间歇性神经根症状。好发于胸段及后方位置。（脊髓造影可显示囊腔（憩室样）。手术切除通常较容易。神经上皮性硬脊膜内囊肿（NIC）罕见，女性与男性之比为2:1，发病年龄在40岁以后。其临床病程严重，与髓内或髓外肿瘤相似。好发于圆锥马尾区及前外侧位置。常导致测压阻滞及蛋白细胞分离。与脊髓和神经根常有大量粘连，髓内型囊肿无明显的分离平面。内皮性硬脊膜内囊肿（EIC）男性与女性之比为2:1，好发于20至30岁。病程可呈间歇性或严重，有神经根和脊髓损害的体征。好发于颈段（前方位置）及圆锥马尾区（后方位置）。通常表现为测压阻滞及蛋白细胞分离。因其与神经根和脊髓常有紧密粘连，切除时需特别小心。
