Spinal meningeal cyst

Dr Jeremy Jones et al.

Spinal meningeal cysts are diverticulae of the arachnoid or dura mater or of the nerve root sheath. They are uncommon, usually asymptomatic and typically found incidentally at MRI (that has been performed for another reason). 

Clinical presenation

They cysts are usually asymptomatic, but if they are large, they may cause mass effect and symptoms relating to compression of local structures, e.g. nerve roots.

CSF pulsation can also remodel the surrounding bone, e.g. sacral canal.

Pathology

The cysts contain CSF and have thin walls. They may be intradural or extradural and may contain neural tissue. The spinal meningeal cyst classification uses these features to separate the different type of cysts.

Associations

They have been occasionally associated with patient's with connective tissue disorders such as 

Classification

See also

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Article Information

rID: 10197
Section: Pathology
Tags: refs, cases
Synonyms or Alternate Spellings:
  • Spinal meningeal cysts

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