Neuro-oncology Flashcards
Glial neoplasm with NECROSIS and perinecrotic pseudopallisaing
GBM
Fried Egg appearance
oligodendroglioma
perivascular pseudorosettes
ependymomas
true rosettes
ependymomas
homer-wright rosettes
medulloblastoma
Ki-67
marker of nuclear proliferation
Rosenthal fibers
astrocytoma (pleomorphic xantho- and pilocytic, alexander’s disease, chronic gliosis
subependymal giant cell astrocytoma
tuberous sclerosis
tumor that typically present with seizures
DNET, oligodendroglioma, gangliogliomas
VHL chrom, inheritance, tumor
cerebellar hemangioblastoma, chrom 3, AD
Zellballen arrangement of nests of cells
paraganglioma
common origin of brain mets
lung>breast
AFP stains for
embryonal carcinoma, endodermal sinus tumor
chromogranin
pituitary adenoma
Common leukocyte antigen
lymphoma, germinoma
Cytokeratin
craniopharyngioma, chordoma
Desmin
rhabdosarcoma, teratoma
Vimentin, epithelial membrane antigen
meningioma
GFAP
astrocytomas
HMB 45 s100
melanoma
immunoglobulin K and L chains
lymphoma
neurofilament and synaptophysin
ganglioma, PNET
S100
schwannoma, RCC, chordoma , PNET, glioma, neurofibroma
transthyretin
choroid plexus tumors
two phases of cell replication that are susceptible to radiation
G1 and M phases
antibody associated with cerebellar degeneration and breast cancer
Anti-YO
sensory neuropathy and small cell (oat cell)
anti-hu
opsoclonus and breast cancer
anti-ri
Rosenthal Fibers (hair-like)
juvenile pilocytic astrocytoma
pseudopallisading necrosis
GBM
fried egg cells with chicken wire arrangement
oligodendroglioma
true rosettes and pseudorosettes
epndymoma
halo like fried egg but stains with synaptophysin and neuron specific enolase
central neurocytoma
monosomy seen in meningiomas
22
HomerWright rosette (central fibrillar material ringerd by cell nuclei ) seen in
medulloblastoma, pineocytoma and neuroblastoma
abundant thin walled vascular channels interspersed with enlarged vacuolated stromal cells
hemangioblastoma
Adamantinomatous pattern and wet keratin
craniopharyngiomas
most common pineal tumor
germinoma
large polygonal cells with large nuclei and t-cell infiltrates
germinoma
monotonous polygonal cells
pituitary adenomas
physaliphorus or bubble bearing cells in mucoid rich stroma
Chordoma
NF1 vs NF2
NF1 optic glioma, Lisch nodules of iris and chrom17 neurofibromin NF2 is 22/merlin/no systemic disease/shwannoma
IDH1
low grade gliomas
marker for glial intermediate filaments
GFAP (astrocytoma)
marker for epithelial intermediate filaments
cytokeratin (think carcinoma generally)
marker for T cells
CD3
marker for B cells
CD 20
marker for melanocytic cells
Melan-A HMB-45
marker for lymphocytes
CD45
chrom. deletion assocaited with progression in anaplastic astrocytoma and GBM
p16
better prognosis in oligodendroglioma
codeltion of 1p19q
chroid plexus papillomas usually arise from which ventricle ?
lateral.
mutliple mets think
melanoma and small cell
most common chrom defect in medulloblastoma and poor prognositc oncogene
chrom 17 and N-myc
primary CNS lymphoma is usually what kind ?
diffuse B cell