Intradural Extramedullary Pathology

**Spoilers below** If you would like to review a specific example or pathology, the diagnosis for each case is listed below:

1. Filum lipoma.

2. Schwannoma.

3. Grade 3 Hemangiopericytoma.

4. Glioblastoma drop metastasis.

5. Sarcoid - leptomeningeal.

6. Post-traumatic neuroma on CT myelo.

7. Schwannoma.

8. Schwannoma with foraminal extension.

9. Large B cell lymphoma T11 - S1.

10. Arachnoid web.

11. Cryptococcus meningitis.

12. Calcified meningioma.