Presentation2.pptx. posterior fossa tumour

1. Imaging of posterior fossa ( Infra-tentorial) tumour By Dr/ ABD ALLAH NAZEER. MD.

2. POSTERIOR FOSSA INTRA-VENTRICULAR TUMOURS. 1- Medulloblastoma . 2- Ependymoma 3- Choroid plexus papilloma .

3. CT and MRI of medulloblastoma .

4. CT and MRI of medulloblastoma

5. choroid plexus papilloma (CPP) at the 4 th and 3 rd ventricles (Ct and MRI images

6. choroid plexus papilloma , MRI images

7. Brain Stem Lesions. Glioma. Ganglioganglioma . Astrocytoma .

8. Mid brain glioma

9. Ganglioglioma of the Brainstem, extending to the cerebellar vemis .

10. Ganglioglioma of the Brainstem, extending to the cervical cord.

11. Brain stem cystic pilocytic astrocytoma .

12. Tectum and cerebellum. Pilocystic astrocytoma . Medulloblastoma . Hemangioblastoma. Tectal glioma.

13. Tectal plate Glioma.

14. Hemangioblastoma of the central nervous system is a benign tumor ( WHO grade I) that is typically cystic and can occur throughout the central nervous system. It is a tumor composed of hemangioblasts , a type of stem cell that normally give rise to blood vessels or blood cells. Its name breaks down to Greek roots as follows: Haema (blood), angeion (vessel), blastos (embryonic), oma (tumor). Locations Predominant locations include the cerebellum and spinal cord . Causes Hemangioblastomas can occur "sporadically", or as a component of the von Hippel-Lindau disease (VHL).

15. Hemangioblastoma of the left cerebellum.

16. Hemangioblastomas in von Hippel-Lindau Disease

17. Hemangioblastoma, extending to the upper cervical region

18. Juvenile pilocytic astrocytoma (JPA).

19. Pilocytic Cerebellar Astrocytoma

20. Pilocytic astrocytoma

21. Acoustic Neuroma MRI Findings.

22. Epidermoid

23. Vertebrobasilar Dolichoectasia .

24. petrous apex cholesterol granuloma DWI

25. Metastasis from cancer breast.

26. Metastasis from bronchogenic carcinoma .

27. Metastasis from renal carcinoma.

28. Posterior fossa cerebellar metastasis in adult.

29. Thank You