Spinal epidural cystic lesions

Last revised by Dr Daniel J Bell on 21 Jun 2021

Spinal epidural cystic lesions are fluid-filled lesions within the spinal canal but outside the thecal sac. Their clinical significance is as a potential contributor to spinal cord or nerve root impingement. Simple appearing spinal epidural cysts may represent several entities that differ by origin:

More complex fluid collections can also be included in the differential of spinal epidural cyst-like lesions:

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