Nathan H, Rosner S
J Neurosurg. 1977 Jul;47(1):68-72. doi: 10.3171/jns.1977.47.1.0068.
Multiple diverticula and cysts of the meninges were found during an anatomical dissection. They were associated with duplications of sheaths of the posterior roots of the spinal nerves. The diverticula and cysts appeared as simple flaccid corrugated dilatations of the sheaths, as ampullary expansions, as pediculated cysts, or as saccular dilatations of different sizes and locations. The duplication of the sheaths affected posterior roots of the thoracic nerves only. Some variations of the sheaths described in the literature are discussed. The possibility is considered that both conditions result from the same pathological factors in the embryo.
在解剖过程中发现了多个脑膜憩室和囊肿。它们与脊神经后根鞘的重复有关。憩室和囊肿表现为鞘的简单松弛皱襞样扩张、壶腹样扩张、带蒂囊肿或不同大小和位置的囊状扩张。鞘的重复仅影响胸神经的后根。文中讨论了文献中描述的鞘的一些变异情况。考虑到这两种情况可能是由胚胎中的相同病理因素导致的。
