# Tarlov cyst

> Tarlov cysts, also known as perineural cysts, are cerebrospinal fluid-filled sacs that form within the nerve root sheath, most commonly at the sacral level of the spine.

**Wikidata**: [Q1648960](https://www.wikidata.org/wiki/Q1648960)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Tarlov_cyst)  
**Source**: https://4ort.xyz/entity/tarlov-cyst


## References

1. Monarch Disease Ontology release 2018-06-29
2. Freebase Data Dumps. 2013