Differences between a Dilated Central Canal and Syrinx
Important information:
The central canal is a small channel that usually runs through the middle of the spinal cord. It's often visible in cross-sectional view but not usually seen on MRI scans. Sometimes, though, it can be seen on MRI.
Difference between dilated central canal and syrinx
A dilated central canal is usually idiopathic, which means it is without a known cause. It is not related to any underlying issue. On the other hand, a syrinx is a larger abnormal collection of fluid in the spinal cord. While a syrinx can also be without a known cause, it often is associated with central nervous system conditions like a Chiari malformation or tethered cord.
Treatment
If a syrinx is present, surgical intervention may be needed. This can involve treating the underlying cause or, in some cases, directly treating the syrinx itself. However, a dilated central canal typically does not require surgery and usually remains stable over time. It is considered a normal variant.
Follow up
A dilated central canal is not thought to cause neurological symptoms. Your child's neurosurgeon will decide if follow-up imaging is needed to ensure stability. Once stability is confirmed, further follow-up with neurosurgery is typically recommended only as needed.
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