Supravermian arachnoid cyst

Case contributed by Dr Roberto Schubert

Presentation

Headaches. Unexplained weakness of the right arm.

Patient Data

Age: 50
Gender: Female
MRI

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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Case information

rID: 29494
Case created: 30th May 2014
Last edited: 9th Oct 2015
Inclusion in quiz mode: Included

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