-
concentrically arranged whorled patterns
menigioma
-
psammoma bodies
meningioma
-
second most common primary brain tumor
meningioma
-
arises from arachnoid cells external to brain
meningioma
-
"pseudopalisading" pleomorphic tumor cells with central areas of necrosis
glioblastoma
-
cerebellopontine angle
schwannoma
-
S-100 positive
schwannoma
-
bilaterally schwannoma found in…
neurofibromatosis type 2
-
fried egg -- round nuclei with clear cytoplasm
oligodendroglioma
-
chicken-wire capillary pattern
oligodendroglioma
-
rathke's pouch
pituitary adenoma, craniopharyngioma
-
bitemporal hemianopia
pituitary adenoma
-
adult tumors in order of incidence
GBM, meningioma, schwannoma, oligodendroglioma, pituitary adenoma
-
rosenthal fibers -- eosinophilic corkscrew fibers
pilocytic astrocytoma
-
cystic and solid
pilocytic astrocytoma
-
rosettes or pervascular pseudorosette pattern of cells
medulloblastoma
-
solid (gross), small blue cells (hits)
medulloblastoma
-
-
can compress 4th ventricle, causing hydrocephalus
medulloblastoma
-
perivascular pseudorosettes with rod-shaped blephharoplasts near nucleus
ependymoma
-
found in 4th ventricle, cause hydrocephalus
ependymoma
-
associated with von Hippel-Lindau when found with retinal angioma
hemangioblastoma
-
produce EPO --> secondary to polycythemia
hemangioblastoma
-
foamy cells, highly vascular
hemangioblastoma
-
calcification is common
craniopharyngioma
-
most common supratentorial tumor
craniopharyngioma
-
childhood tumors in order of incidence
pilocytic astrocytoma, medulloblastoma, ependymoma, hemangioblastoma, craniopharygioma
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