脑脊膜在脑和脊髓的表面有三层结缔组织膜。
结论：假性脑脊膜膨出性PTH非常罕见。
Conclusion. PTH presenting as a pseudomeningocele is extremely rare.
背景与目的：原发于脑脊膜的血管外皮瘤临床少见。
Background and Objectives: Meningeal hemangiopericytoma is an uncommon tumor.
结论MRI检查能清楚显示淋巴瘤脑脊膜受侵病灶的部位和范围。
Conclusion MRI is able to clearly show location and scope of lesions that are caused by invasion of lymphoma into cerebrospinal meninges.
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