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A member asked:

My ct scan showed sub lenticular cyst of 9mm. is this dangerous size? why my mri did not show it? was it supposed to?

A doctor has provided 1 answer

Not likely dangerous: It is not clear why the CT scan showed the cyst and the MRI did not. I would recommend that you make sure the studies were compared. Cysts in the brain are usually benign. Without seeing the study, it is hard for me to make a comment about your scans.

Answered 1/5/2019

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