it also looks like your image is strangely squashed. DId you process the dicoms right from the scanner? I wonder whether your voxel sizes were incorrect On Tue, 19 Feb 2013, Louis Nicholas Vinke wrote:

Hi Deirdre, It looks like your skullstrip failed and left a lot of the neck which was mistaken for the cerebellum. The actual cerebellum was incorporated into your surfaces. Take a look at the wiki page below for how you might go about fixing this case.

https://surfer.nmr.mgh.harvard.edu/fswiki/FsTutorial/SkullStripFix

-Louis

On Tue, 19 Feb 2013, Deirdre O Shea wrote:

...

Dear FreeSurfer community,

After running FreeSurfer on almost a hundred subjects, I have encountered just two that have strange surface reconstructions. I have re-ran them from scratch hoping it would rectify this problem but to no avail. I have not done anything different with these subjects and the rest turned out okay. I have attached an image to show you what I mean. Any suggestions about why this happens and how it can be fixed would be great!

Thanks in advance,

Deirdre

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