Use the model on your own site

The Chiari model is free for foundations, clinics, teachers and anyone explaining Chiari. Embed the viewer, or download the files for your own projects.

License: CC BY-SA 4.0
Based on: Z-Anatomy (CC BY-SA 4.0) and BodyParts3D, © The Database Center for Life Science (CC BY-SA 2.1 JP)
Views included: Typical, Chiari I, Chiari I with syrinx, after decompression
Accuracy checks: Measured against published sources; not reviewed by a medical professional

Fig. 2 Chiari I with syrinx, one of four included views. Illustration, not a medical image. Fluid flow simplified. Tonsils shown at their lowest point, where MRI measures them.

Embed the viewer

<iframe src="https://openchiari.org/embed/#v=c1&switch=1&labels=1"
  width="100%" height="640" title="Chiari malformation 3D model"
  loading="lazy"></iframe>

Download

File	Format	Best for	Size
Web model, all four views	glTF	Websites and apps	1.1 MB	Download
Editable source	Blender	Changing the model	8.0 MB	Download
Figure set, labeled	PNG and PDF	Handouts and slides	1.8 MB	Download
3D-printable plaques, typical and Chiari I	STL	Printing to hold and show	5.6 MB	Download

How to credit it

Keep this line wherever you use the model, and share any changed version under the same license.

Chiari model by Open Chiari (openchiari.org), CC BY-SA 4.0, adapted from Z-Anatomy (CC BY-SA 4.0) and BodyParts3D, © The Database Center for Life Science (CC BY-SA 2.1 JP)

Not medical advice. Illustrations for education, not medical images.