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探讨腰骶椎软骨结节好发部位及典型CT征象。方法：回顾分析40例腰骶椎软骨结节的病因、好发部位，重点讨论其对硬膜囊、神经根以及椎管的影响。结果：软骨结节好发于腰骶椎后缘，伴相应硬膜囊、神经根改变，其中L5后下缘和S1后上缘为最好发部位，可据发病部位分型。结论：CT能较好显示软骨结节的部位、形态、大小、数目及伴随改变，并能准确分型，是较为理想的检查方法。
To explore the location and typical CT signs of lumbosacral vertebral cartilage nodules. Methods: Retrospective analysis of 40 cases of lumbosacral vertebral cartilage nodules of the etiology, the incidence of sites, focusing on its impact on the dural sac, nerve root and spinal canal. Results: The cartilage nodules occurred in the posterior edge of lumbosacral vertebrae, with corresponding dural sacs and nerve root changes. The lower edge of L5 and the upper edge of S1 were the best sites, which could be classified according to the disease site. Conclusion: CT can better show the location of cartilage nodules, shape, size, number and accompanying changes, and can accurately type, is an ideal method of examination.