25 results found
Article
Tarlov cyst
Tarlov cysts, also called perineural cysts, are CSF-filled dilatations of the nerve root sheath at the dorsal root ganglion (posterior nerve root sheath). These are type II spinal meningeal cysts that are, by definition, extradural but contain neural tissue.
Most Tarlov cysts are asymptomatic, ...
Case
Tarlov cyst
Published
05 Apr 2012
83% complete
MRI
Case
Tarlov cyst
Published
01 Dec 2021
80% complete
MRI
Case
Tarlov cysts
Published
18 Oct 2015
80% complete
MRI
Case
Tarlov cyst - large
Published
08 Oct 2019
89% complete
MRI
Case
Tarlov cyst
Published
07 Jul 2017
77% complete
MRI
Case
Tarlov cyst
Published
20 Aug 2014
77% complete
MRI
Case
Large Tarlov cyst
Published
22 Nov 2023
77% complete
MRI
Case
Tarlov cysts
Published
16 Oct 2008
56% complete
MRI
Case
Tarlov cysts around sacral nerve roots
Published
01 Dec 2020
77% complete
MRI
CT
Case
Tarlov cysts
Published
23 May 2009
50% complete
MRI
Case
Tarlov cyst
Published
17 Oct 2010
39% complete
MRI
Case
Tarlov cyst
Published
15 Dec 2009
39% complete
MRI
Article
Occult intrasacral meningocele
Occult intrasacral meningocele, or more simply sacral meningocele, is a rare congenital lesion characterized by an extradural arachnoid cyst within the sacral canal, classified as a Nabor type Ib meningeal cyst.
Terminology
Other terms for this entity in the literature include intrasacral meni...
Article
Discal cyst
Discal cysts (also known as a disk cyst or disc cyst) are uncommon lesions of the spine, representing an extrathecal cyst which communicates with the adjacent intervertebral disc through an annular fissure.
Epidemiology
The vast majority of discal cysts, as rare as they are, have been reporte...
Article
Spinal meninges
The spinal meninges (singular: meninx) are contained within the spinal canal and encase the spinal cord, spinal nerve roots and the cauda equina.
Gross anatomy
They are composed of three layers (outer to inner)
dura mater (also known as theca or pachymeninx)
arachnoid mater
pia mat...
Article
Dural ectasia
Dural ectasia refers to ballooning or widening of the dural sac which can result in posterior vertebral scalloping and is associated with herniation of nerve root sleeves.
Clinical presentation
Patients with dural ectasia may present with low back pain or radicular pain in the buttocks or legs...
Article
Cauda equina syndrome
Cauda equina syndrome is considered an incomplete cord syndrome, even though it occurs below the conus. Cauda equina syndrome refers to a collection of symptoms and signs that result from severe compression of the descending lumbar and sacral nerve roots. It is most commonly caused by an acutely...
Article
Classification of spinal meningeal cysts
Spinal meningeal cysts can be classified according to a system published by Nabor et al. 2:
type I: extradural meningeal cyst without neural tissue
type Ia: extradural spinal arachnoid cyst
type Ib: sacral meningocele
type II: extradural meningeal cyst containing neural tissue, e.g. Tarlov c...
Article
Spinal meningeal cyst
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 on MRI.
Clinical presentation
They cysts are usually asymptomatic, but if they are large, they may cause mass effect and...
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