Chapter 32 Quiz Flashcards
what is the most common classification of brain tumor
glioma
this type of tumor originates in the cells that are comprised of three distinct coverings that protect the brain and spinal cord
meningioma
this is a type of tumor that originates in the cells that line the ventricles and spinal cord that are responsible for the production of CSF
ependymoma
which primary tumor mets to the brain more often thatn any other primary tumor
lung cancer
which of the following is the primary factor for prognosis for a brain tumor
grade
what grade of brain tumor is the following: the tissue is benign. the cells look nearly like healthy brain cells and they grow slowly
I
most metastic tumors occur in this area of the brain
cerebrum
whihc on the following is not located in the infratentorial region
- medulla
- cerebrum
- pons
- brainstem
cerebrum
nerve cells are located primarily in
gray matter
in the brain, ____ matter is usually located superifically and ___ matter is more deep in the brain
gray
white
in the spinal cord, the __ matter is more superficial, and the ____ matter is more deep iwthin the spinal cord
white
grey
which two of the following are the major patterns of spread for CNS tumors
CSF seeding
local invasion
tumors that occur in the ______ portion of the brain will likely cause the following symptoms: personality changes, memory defects, and speech difficulties
frontal
gadolinium is contrast used for which imaging study
MRI
true/false: gadolinim is an iodine based contrast agent
false
fluorodeoxyglucose is a radionuclide used in which imaging modality
PET
which is more radioresistant
hypoxic cells
TD 5/5: spinal cord
4700 cGy
TD 5/5: brain
4500 cGy
TD 5/5: optic chiasm
5000 cGy
TD 5/5: lens of eye
1000 cGy
TD 5/5: optic nerve I and III
5000 cGy
TD 5/5: parotid glands
3200 cGy
TD 5/5: retina
4500 cGy
Injury if TD 5/5 is exceeded: brain
necrosis/infarction
Injury if TD 5/5 is exceeded: brain stem
necrosis/infarction
Injury if TD 5/5 is exceeded: lens of eye
cataract
Injury if TD 5/5 is exceeded: optic chiasm
blindness
Injury if TD 5/5 is exceeded: optic nerve
blindness
Injury if TD 5/5 is exceeded: parotid gland
xerostomia
Injury if TD 5/5 is exceeded: spinal cord
myelitis/necrosis
Injury if TD 5/5 is exceeded: retina
blindness