Cyst of the medullary conus
Neurogenic bladder. ?conus or cauda equina lesion.
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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.
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.
- 1. 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