Quencer R M, el Gammal T, Cohen G
AJNR Am J Neuroradiol. 1986 Jan-Feb;7(1):143-8.
Three cases of syringomyelia associated with intradural extramedullary tumors of the spinal canal are reported to demonstrate their radiographic feature, to postulate a mechanism for their formation, and to describe the clinical deterioration occurring in two patients immediately after metrizamide myelography. It is believed that the mechanism by which these syrinx cavities formed was similar to the mechanism of syrinx formation within chronically injured spinal cords. The cystic cavities may extend for considerable distances away from the extramedullary mass and may be present above and/or below the mass. The development of a syringomyelia in the face of an intradural extramedullary tumor may not be rare, and it is suspected that with the more frequent use of delayed metrizamide CT and now magnetic resonance imaging, syringomyelia will be found as an occasional consequence of this type of mass.
本文报告了3例与椎管内硬膜下髓外肿瘤相关的脊髓空洞症病例，以展示其影像学特征，推测其形成机制，并描述2例患者在甲泛葡胺脊髓造影后立即出现的临床恶化情况。据信，这些空洞形成的机制与慢性损伤脊髓内空洞形成的机制相似。囊性空洞可能会从髓外肿块延伸相当长的距离，并且可能出现在肿块上方和/或下方。面对硬膜下髓外肿瘤时脊髓空洞症的发生可能并不罕见，并且怀疑随着延迟甲泛葡胺CT以及现在的磁共振成像的更频繁使用，脊髓空洞症将作为这类肿块的一种偶然后果被发现。
