radiation oncology exam 3 with correct answers

radiation oncology exam 3 with correct answers


Expressive aphasia (Broca's) - CORRECT ANSWERS ✔✔-frontal lobe

-loss of ability to produce language

-know what they want to say, but can't



Receptive aphasia (Wernicke's) - CORRECT ANSWERS ✔✔-temporal lobe

-unable to understand language written or spoken

-can speak with normal grammar, syntax, rate, intonation

-"word salad"



cerebellar problem - CORRECT ANSWERS ✔✔balance

-gait instability (walk sideways)

-dizziness

-poor coordination



brain tumor presentation - CORRECT ANSWERS ✔✔-headache

-nausea & vomiting

-difficulty with balance (cerebellum)



incidence of brain tumors - CORRECT ANSWERS ✔✔metastatic- 200,000 (10x more
likely)

primary- 20, 000

, percent of patients who develop brain metastases - CORRECT ANSWERS ✔✔20-40%



whole brain RT - CORRECT ANSWERS ✔✔300cGyx10

or old: 250cGyx15



gamma knife - CORRECT ANSWERS ✔✔-single treatment

-used in brain cancer



cyberknife - CORRECT ANSWERS ✔✔linear accelerator attached to a robotic arm,
takes 1-2 hours



low grade brain cancers - CORRECT ANSWERS ✔✔grade 1 and 2



high grade brain cancers - CORRECT ANSWERS ✔✔grade 3 and 4



survival with RT and TMZ chemo - CORRECT ANSWERS ✔✔statistically higher



reasons to use radiation therapy meningioma - CORRECT ANSWERS ✔✔-
unresectable

-subtotal resection

-recurrent

-high grade



pituitary adenoma - CORRECT ANSWERS ✔✔a slow-growing, benign tumor of the
pituitary gland that may or may not cause excess hormone secretion