Cyst of the medullary conus
Last revised by Tariq Walizai
on 17 Dec 2024
Citation, DOI, disclosures and article data
Citation:
Dixon A, Walizai T, Knipe H, et al. Cyst of the medullary conus. Reference article, Radiopaedia.org (Accessed on 07 Mar 2025) https://doi.org/10.53347/rID-33651
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rID:
33651
Article created:
Disclosures:
At the time the article was created Andrew Dixon had no recorded disclosures.
View Andrew Dixon's current disclosures
Last revised:
17 Dec 2024,
Tariq Walizai
Disclosures:
At the time the article was last revised Tariq Walizai had no financial relationships to ineligible companies to disclose.
View Tariq Walizai's current disclosures
Revisions:
12 times, by
7 contributors -
see full revision history and disclosures
Systems:
Tags:
Synonyms:
- Persistent ventriculus terminalis
- Persistent 5th ventricle
- Cystic dilatation of the ventriculus terminalis
- Cystic dilatation of the 5th ventricle
- Ependymal cyst of the medullary conus
Cyst of the medullary conus is a rare benign ependymal cyst of the conus medullaris which probably relates to abnormal persistence and cystic dilatation of the ventriculus terminalis or "5th ventricle".
Clinical presentation
This entity can be symptomatic or can present in adulthood with bladder or bowel sphincter disturbance.
Differential diagnosis
Filar cysts occur in a similar region but are below the conus medullaris.
References
- 1. Coleman LT, Zimmerman RA, Rorke LB. Ventriculus terminalis of the conus medullaris: MR findings in children. AJNR Am J Neuroradiol. 1995;16 (7): 1421-6. Pubmed citation
- 2. Celli P, D'Andrea G, Trillò G et-al. Cyst of the medullary conus: malformative persistence of terminal ventricle or compressive dilatation?. Neurosurg Rev. 2002;25 (1-2): 103-6. Pubmed citation
- 3. Nagano S, Ijiri K, Kawabata R et-al. Ependymal cyst in the conus medullaris. J Clin Neurosci. 2010;17 (2): 272-3. doi:10.1016/j.jocn.2009.05.026 - Pubmed citation
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