brain tumors

Question 1

astrocytomas, oligodendrogliomas, and mixed oligoastrocytomas

Answer 1

glioma

Question 2

(MRI) Low grade gliomas generally ____________________________

Answer 2

do not enhance but demonstrate T2 FLAIR hyperintensity in a diffuse patter

Question 3

(MRI) High grade gliomas usually present as _______________________________

Answer 3

large contrast enhancing lesions with surrounding edema seen as T2 FLAIR hyperintensity

Question 4

most common primary brain tumor in adults

Answer 4

glioblastoma multiforme

Question 5

type of astrocytoma

Answer 5

glioblastoma multiforme

Question 6

poor prognosis (6m-1Y)

Answer 6

glioblastoma multiforme

Question 7

locates in hemispheres

Answer 7

glioblastoma multiforme

Question 8

necrotic centers, surrounded by edema

GFAP

Answer 8

glioblastoma multiforme

Question 9

pseudopalisading necrosis

Answer 9

glioblastoma multiforme

Question 10

2nd mosr common brain tumor in adults

Answer 10

Meningioma

Question 11

slow growing

Answer 11

Meningioma

Question 12

originates in arachnoid cells

Answer 12

Meningioma

Question 13

more common in women

Answer 13

Meningioma

Question 14

psammoma bodies (laminated calcifications)

Answer 14

Meningioma

Question 15

On MRI, a typical Meningioma ia an ____________________________________

Answer 15

extra axial, dural based mass that is isointense or hypointense to gray matter on T1 and isointense or hyperintense on T2 weighted images

Question 16

There is usually strong, homogeneous enhancement after administration of contrast

Answer 16

Meningioma

Question 17

acoustic CN VIII

Answer 17

schwannoma

Question 18

benign, marker S100

Answer 18

schwannoma

Question 19

neurofibromatosis type 2 bilateral

Answer 19

schwannoma