Thakur- Glimpse into Posterior Fossa

Question 1

where is tumor

Answer 1

Broca’s area

Question 2

learn

Question 3

learn

Question 4

hemifacial spasm; what nerve affected

Answer 4

CN VII

Question 5

Epidermoid tumor, stroke, infarction, infection if anything lights up on ______ MRI

Answer 5

diffuse weighted

Question 7

if there is brainstem compression and mass effect, what tumor

Answer 7

epidermoid tumor

Question 8

what herniation compresses oculomotor nerve

Answer 8

uncal

Question 9

eye is down and out

Answer 9

CN III Palsy (CN IV and VI take over)

Question 10

inability to move eye outward; double vision (diplopia)

Answer 10

CN VI Palsy

Question 11

whenever someone presents with HA, what should you be thinking

Answer 11

increased ICP

Question 12

HAs, N/V (what organ involved)

Answer 12

brain

Question 13

HAs, N/V
where is tumor

Answer 13

against brainstem

Question 14

this is associated with medulloblastoma and chromosome 3

Answer 14

Von-Hippel Lindau (VHL)

Question 15

what artery branches off basilar and supplies lateral pons

Answer 15

anterior inferior cerebellar a. (AICA)

Question 16

what artery branches off vertebral and supplies lateral medulla

Answer 16

posterior inferior cerebellar a. (PICA)

Question 17

what artery supplies midbrain

Answer 17

posterior cerebral a. (PCA)

Question 18

what artery supplies medial medulla

Answer 18

anterior spinal a. (ASA)

Question 19

neck pain, HAs, weakness

Answer 19

tumor suppressing pons down to C3

Question 20

do not disconnect what from the bottom

Answer 20

odontoid on C2