Neuro Tumors

theyak89's version from 2016-06-02 19:11


Question Answer
Highly malignant brain tumor, 1 yr median survival. Gliobastoma multiforme (adult)
Cerebral hemispheres, can cross corpus callosum. Stain for GFAP. Pseudopalisading. Border central areas of necrosis and hemorrhageGliobastoma multiform (adult)
Convexities of hemispheres (surfaces of brain), parasagittal region. Arises from arachnoid cells. Can have dural attachment. Seizures or focal signsMeningioma (adult)
Spindle cells conctrically arranged in a whorled patter, psammoma bodiesMeningioma (adult)
Cerebellar. VHL syndrome with retinal angiomas. Produces erythropoietin -PolycythemiaHemangioblastoma (adult)
Closely arranged thin walled capillaries with minimal interleaving parenchymaHemanbioblastoma (adult)
Cerebellopontine angle. S-100 +, CNVIII. Bilateral in NF-2Schwannoma (adult)
Slow growing, frontal lobes, chicken wire capillary, oligodentrocytes, Oligodendroglioma (adult)
Most commonly prolactinoma. Pressure on optic chiasm.Pituitary Adenoma (adult)
Well circumscribed. Posterio fossa (cerebellum) GFAP +. Rosenthal fibers (corkscrew, eosionophilic) Cystic + solidPilocytic astrocytoma (child)
Highly maliginant cerebellar tumor. Primitive neuroectodermal tumor. Compresses 4th ventral with hydrocephalus. Homer Wright Rosettes, small blue cellsEpendymoma (child)
Benign tumor. Can cause bitemporal hemianopia. Remnants of Rathke Pouch. CalcificationCraniopharyngioma (child)