Brain Tumor

Question 1

leading cause of death from solid tumors under age 20

Answer 1

brain tumor

Question 2

cancer arising form arachnoid cap cells

Answer 2

meningioma

Question 3

most common type of brain tumor

Answer 3

astrocytoma

Question 4

4 grades of astrocytoma

Answer 4

Grade 1 - these usually occur in children and can be cured with surgery. The most common example is the juvenile pilocytic astroctyoma, which often occurs in the cerebellum.
Grade 2 or low grade astroctyoma usually occurs in adults, as with grades 3 and 4. It is also called simply astrocytoma or diffuse astroctyoma.
Grade 3 - anaplastic astrocytoma is also called malignant astroctyoma.
Grade 4 - glioblastoma multiforme (butterfly) contains dead tissue within it.

Question 5

pituitary adenomas

Answer 5

typically benign tumors of the anterior pituitary
micro <1CC, macro >1CC
functioning means it is secreting hormones

Question 6

acoustic neuroma

Answer 6

benign tumor of the schwann cells (CNVIII)

common with neurofibromatosis

Question 7

gold standard treatment for pituitary adenoma

Answer 7

transsphenoidal sx

Question 8

pseudotumor cerebri

Answer 8

• obese female of childbearing age

- HA, photophobia, increased ICP that can lead to blindness

Question 9

PE findings of pseudotumor cerebri

Answer 9

-papilledema
-VF loss
6th nerve palsy

Question 10

how to dx psuedotumor cerebri

Answer 10

LP >250

<200 is normal

Question 11

how to treat pseudotumor cerebri

Answer 11

• weight loss, low Na

- diamox/topamax