Nasal Cavity Geometry Extraction

I need a sample CT DICOM data of a head. Where can I find it?
Search for head and neck.

Also on the same site the CPTAC-GBM dataset includes some head CTs.

This data is in TCIA format. How do I convert it to DICOM or is any there any way to load it in Slicer?

Most of the data on TCIA is in dicom, you just need to download it.

I have downloaded it but how do I import it in Slicer. I tried to drag and drop but it shows nothing.

Did you use the download manager?

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