Hi Matthieu

yes, you can see why that would be hard since it looks like continuous gray matter there. What does the aseg say? I think if you correct it and rerun things it should fix the surfaces.

cheers Bruce On Fri, 22 Mar 2019, Matthieu VANHOUTTE wrote:

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Dear FreeSurfer's experts,

I encountered one problem following a recon-all: small part of the gray matter cerebellum has been taken as cortical gray matter within the occipital pial surface (see image attached below on right hemisphere).

How could I correct for this defect?

Best,

Matthieu