Cyst of the medullary conus

Case contributed by Andrew Dixon


Neurogenic bladder. ?conus or cauda equina lesion.

Patient Data

Age: 60 years
Gender: Female

Ovoid cyst which matches CSF signal at the conus completely filling the spinal canal over a 3.5cm length. The cauda equina roots are displaced peripherally around the lesion with complete effacement of CSF.  Bilateral renal pelvis dilatation, likely secondary to neurogenic bladder.   

Case Discussion

Cyst of the conus medullaris presenting with neurogenic bladder in a 60 year old woman. This can go by several other names such as persistence (or cystic dilatation) of the ventriculus terminalis or 5th ventricle. 

How to use cases

You can use Radiopaedia cases in a variety of ways to help you learn and teach.

Creating your own cases is easy.

Updating… Please wait.

 Unable to process the form. Check for errors and try again.

 Thank you for updating your details.