The Impression was:
Essentially normal MRI scan of the brain without and with gadolinium enhancement. There is a question of a small arachnoid cyst vs. a prominent cisterna magna.

Findings: There is a rounded water density present b/w the cerebellar hemispheres. This is slightly asymmetric being slightly larger on left than right. This may simply represent a prominent cisterna magna. The presence of a small arachnoid cyst cannot entirely be excluded. No mass effect is seen relaterd to this and it is unlikely that this is of any pathologic significance.

If anyone knows anything about this or has experienced or read about it-please let me know what I can/should!!

Thanks

I have had one done on my back before.

I told someone afterwork an "open" MRI is relative! HA!