这个词是什么意思？
Perineurial cysts commonly found in the SACRAL REGION. They arise from the PERINEURIUM membrane within the SPINAL NERVE ROOTS. The distinctive feature of the cysts is the presence of spinal nerve root fibers within the cyst wall, or the cyst cavity itself.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D052958 · MeSH 2026。
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