Presentation
Headaches. Unexplained weakness of the right arm.
Patient Data
Age: 50
Gender: Female
From the case:
Supravermian arachnoid cyst
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Info
Homogeneous lesion between the upper vermis and the cerebellar tentorium with homogeneous CSF signal on all sequences, a thin (non-discernible) wall and slight indentation of the vermian surface.
Case Discussion
The supravermian cistern is one of the less common locations of posterior fossa arachnoid cysts1.
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