Neuro - Tumors HY

Question 1

intra-axial

Answer 1

(from brain itself)

• Gliomas
• Neuronal tumors
• Metastasis

Question 2

extra-axial

Answer 2

(from outside brain)

• meningioma
• shwannoma
• neurofibroma
• sella masses
• metastasis

Question 3

astrocytoma

Answer 3

GLIOMA

Pilocytic: pediatric pop, benign, usually cerebellar

Low grade: malignant but good prog, no enhancement

Anaplastic: malignant, poorer prog

Glioblastoma multiforme: WORST prog, most common glioma, likes to cross corpus callosum

Question 4

ependymoma

Answer 4

GLIOMA

originates in ventricles, hyrdrocephalus common

Question 5

oligodendroglioma

Answer 5

glial tumor arising from oligodendrocytes

slow growing

good prognosis

“fried egg”

HA/seizures

Question 6

meningiomas

Answer 6

external to brain

• arise from arachnoidal cap cells
• signs due to compression
• can be removed

SLOW growing, benign

good prognosis

Question 7

sellar masses

Answer 7

HA

bitemporal hemianopia

pituitary adenoma

• (2 types: func (secreting) vs nonfunc)
• hormonal sx (prolactinemia, cortisol, GH)
• visual loss