Presentation
Left hemiparesis and facial hypesthesia.
Patient Data
Age: 30 years
Gender: Female
From the case:
Neuroglial cyst - brainstem
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Large rounded cyst in the right pontine region crossing the midline and slightly indenting the IVth ventricle. Predominantly hyperintense T2 signal within the lesion with low signal sediment with minor blooming on the B = 0 (EPI) sequence. On T1, the sediment is hyperintense and the rest of the contents isointense to brain tissue. No perifocal edema. No contrast enhancement.
Case Discussion
Stereotactic biopsy and drainage of the lesion were performed. Histologic and immunohistochemistry findings were in keeping with a neuroglial cyst with marked internal astrogliosis and protein-rich content.