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16 Cards in this Set

  • Front
  • Back
what is the most common tumor in males? in females?
males - gliomas
females - meningiomas
what are the strongest prognostic factors when dealing with CNS tumors?
histological type
What are the 3 subtypes of low grade astrocytoma?
what is the main symptom of low grade astrocytomas?
> 50% present with seizures
what age group would you see an anaplastic astrocytoma/glioblastoma multiforme tumor in?
older people; mean age is 60 y/o
what is the prognosis for anaplastic astrocytoma/ glioblastoma multiforme?
AA- 3 years
GBM - 1 year
what age group is most likely to get a meningioma?
can arise in childhood but increased risk with increased age
what will determine the symptoms associated with a meningioma?
location of the tumor
what is the treatment for a meningioma?
surgical ressection most common
possibly gamma knife or radiation therapy
What is the difference between a functioning and non-functioning pituitary adenoma?
funcitoning adenomas secrete hormones in excess of normal levels
what are the signs/symptoms of a pituitary adenoma?
endocrinologic disturbance
mass effect causes vision loss
pituitary apoplexy
why are pituitary adenomas not radiated?
cannot keep the radiation off of the optic nerve and will cause blindness
what is cushing's tirad?
widening of the pulse pressure
irregular respirations
where are tumors most likely to be found in the CNS in adults? children?
adults - supratentorial
children - infratentorial
what is the overall mortality and morbidity rate for craniotomy for brain tumors?
why is chemotherapy usually not a good choice of treatment of CNS tumors?
most chemotherapeutic agents have a large molecular weight which makes it hard for them to cross the BBB