Meniscus sign (myelography)

Last revised by Pir Abdul Ahad Aziz Qureshi on 11 Apr 2020

​The meniscus sign refers to the intradural filling defect which is outlined by the sharp meniscus of intrathecal contrast due to blockage of subarachnoid space by an intradural lesion. The CSF above the blocked segment remains ​unopacified.

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