spinale meningeale Zysten

Zufallsbefund
einer lateralen meningealen Zyste auf Höhe BWK 12. (MRT wegen LWK-4-Fraktur). Die Zyste findet sich auf Höhe des Wirbelkörpers im Gegensatz zu einer Wurzeltaschenzyste, die sich in die Foramina ausdehnt und diese ggf. aufweitet. Die in T2 signalreichere Darstellung ggü. dem Liquor im Duralsack ist durch Pulsationen in letzterem erklärt.
Wikipedia • CC BY-SA 3.0
Dorsal
arachnoid web: the ‘scalpel’ sign—a case report and differential diagnosis. MRI of the arachnoid cyst in dorsal spine T2W sagittal (a) and axial (b, c) sections demonstrating an increase in the posterior arachnoid space in mid and lower dorsal spine displacing and compressing the spinal cord anteriorly. A thin membrane is observed at the upper end (white arrow in a) and anterior edge (white arrows in c)
ejrnm.springeropen.com • CC-by-4.0
Classification
of spinal meningeal cysts • Tarlov cyst - Ganzer Fall bei Radiopaedia
Gaillard, F. Tarlov cyst. Case study, Radiopaedia.org. (accessed on 21 Oct 2022) https://doi.org/10.53347/rID-7826 • CC by-nc-sa 3.0 (modified)
Ventral
cervical spinal intradural arachnoid cyst: an unusual presentation. Spinal MRI in the axial plane demonstrates how the spinal cord (red arrows) is displaced to the right and compressed by the intradural lesion already described (yellow arrows).
www.eurorad.org • CC by-nc-sa-4.0
Classification
of spinal meningeal cysts • Tarlov cysts - Ganzer Fall bei Radiopaedia
Gaillard, F. Tarlov cysts. Case study, Radiopaedia.org. (accessed on 21 Oct 2022) https://doi.org/10.53347/rID-4787 • CC by-nc-sa 3.0 (modified)
Ventral
cervical spinal intradural arachnoid cyst: an unusual presentation. Spinal MRI in the sagittal plane shows an extramedular lesion (yellow arrows), anterior to the spinal cord, that is hypointense in T1WI, hyperintense in T2WI and showed no enhancement after endovenous contrast administration.
www.eurorad.org • CC by-nc-sa-4.0
Spinale
meningeale Zyste auf Höhe des thorakolumbalen Übergangs mit deutlicher Impression des Duralsackes. Die knöchernen Strukturen sind um die Zyste aufgeweitet / ummodelliert.
Wikipedia • CC BY-SA 4.0
Classification
of spinal meningeal cysts • Sacral meningeal cyst - Ganzer Fall bei Radiopaedia
Schubert, R. Sacral meningeal cyst. Case study, Radiopaedia.org. (accessed on 21 Oct 2022) https://doi.org/10.53347/rID-16059 • CC by-nc-sa 3.0 (modified)
Classification
of spinal meningeal cysts • Extradural meningeal cyst - Ganzer Fall bei Radiopaedia
Schubert, R. Extradural meningeal cyst. Case study, Radiopaedia.org. (accessed on 21 Oct 2022) https://doi.org/10.53347/rID-14691 • CC by-nc-sa 3.0 (modified)
Classification
of spinal meningeal cysts • Perineural cyst - Ganzer Fall bei Radiopaedia
Gaillard, F. Perineural cyst. Case study, Radiopaedia.org. (accessed on 21 Oct 2022) https://doi.org/10.53347/rID-3885 • CC by-nc-sa 3.0 (modified)
Classification
of spinal meningeal cysts • Spinal arachnoid cyst - Ganzer Fall bei Radiopaedia
Balachandran, G. Spinal arachnoid cyst. Case study, Radiopaedia.org. (accessed on 21 Oct 2022) https://doi.org/10.53347/rID-5439 • CC by-nc-sa 3.0 (modified)
Spinal
arachnoid cyst secondary to meningeal metastasis. T1 sagittal image cervical and thoracic spine. Arachnoid cyst seen at T 7 level tethering the cord posteriorly. Multiple compression fracture is also seen.
www.eurorad.org • CC by-nc-sa-4.0
Spinal
arachnoid cyst secondary to meningeal metastasis. T2 sagittal images cervical and thoracic spine with zoomed-in area of lower cord showing abnormal signals.
www.eurorad.org • CC by-nc-sa-4.0
Radiopaedia • CC-by-nc-sa 3.0 • de

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.

Clinical presentation

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

Siehe auch:
Assoziationen und Differentialdiagnosen zu spinale meningeale Zysten:
Wurzeltaschenzysten
 
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spinale
Arachnoidalzyste
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sakrale
symptomatische Tarlov-Zysten
www.eurorad.org • CC by-nc-sa-4.0
intraspinale
epidurale zystische Raumforderungen
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