1. Palisades and tumors

2. Lung metastatic tumor in brain

3. A meningioma at a parasagittal location

4. Benign meningioma growing underneath the dura

5. Note compression caused by meningioma in the underlying cerebral hemisphere

6. Meningioma compressing the pituitary

7. Giantism can result from pituitary tumors in childhood

9. Benign ependymoma; note inaccessible site

10. Cystic astrocytoma of childhood

11. Glioma with mass effect

12. Low grade gliomas still have poor prognosis if present in a difficult to remove location

13. Large brain stem glioma

14. Cerebral hemisphere glioma; note absence of clear margin

15. Astrocytoma at low magnification; normal tissue at right

16. Glioblastoma multiforme

17. GBM: note necrosis, hemorrhage

18. Note palisading effect around necrotic region

19. Two models for the formation of pseudo-palisades in GBM

20. Palisading cells surrounding necrosis are typical of GBM

21. Model for formation of palisades