1. Pediatric Brain Tumors
DR: ABD ALLAH NAZEER. MD.

13. Juvenile pilocytic astrocytoma (JPA).

22. Intra-ventricular ependymoma

30. Bilateral acoustic neuroma of NF type 11

31. Bilateral acoustic neuroma of NF type 11

32. Epidermoid cysts, also known as "pearly tumors”
because of their bright white appearance at intraoperative resection, developed from epithelial
inclusions in basal cisterns, diploe of the skull and,
very rarely in the intrinsic brainstem or pineal region,
during neural tube closure or formation of secondary
cerebral vesicles. They are not really tumors, their
growth is due to the continuous formation of the
keratohyalin from continued desquamation by the
epithelium tissue. Their growth is very slow, so the
onset of their clinical manifestations is variable
between 20 and
40 years in most of the cases.

33. CP angle epidermoid cysts

34. Cerebellopontine angle epidermoid cyst.

38. Cerebral Pilocytic Astrocytoma with
Spontaneous intracranial Hemorrhage

43. Supratentorial ependymoma in a 10-year-old girl on a noncontrast CT, b T2-weighted, c
FLAIR, and d–f postgadolinium T1-weighted MRI. Unlike posterior fossa ependymomas,
most supratentorial ependymomas (70%) are extraventricular in origin.

44. Supra-tentorial grade 2 ependymoma in a 12-year-old girl. a Axial
FLAIR, b axial perfusion MRI, c post-contrast axial T1, d axial cerebral
blood volume map derived from perfusion MRI, e axial ADC coefficient,
and f perfusion MRI T2*-weighted dynamic susceptibility .