Infantile arachnoid cyst compressing the sacral nerve root associated with spina bifida and lipoma--case report.


A 2-year-old boy presented with a rare sacral arachnoid cyst manifesting as gait disturbance. Neuroimaging revealed an intradural cyst in the sacral nerve root sheath associated with spina bifida occulta and a lipoma at the same level. At surgery, the conus medullaris was situated at the L-1 level and not tethered. The highly pressurized arachnoid cyst had… (More)


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