Neuroradiology

Question 1

how does blood appear on a CT?

Answer 1

acute blood = bright

Question 2

How do white and gray matter appear in:

1. T1 MRI
2. T2 MRI

Answer 2

1. white matter is brighter, gray matter is darker

2. white matter is darker, gray matter is brighter

Question 3

What are four places where Hypertension Hemorrhages occur? from most common to least common?

Answer 3

1. Basal Ganglia
2. Thalamus
3. Pons
4. Cerebellum

Question 4

what type of CNS neoplasm has whorled pattern of spindle cells, and psammoma bodies, outside of the brain, dural tail

Answer 4

Meningioma

Question 5

Antoni A and B cells

Answer 5

Schwannoma

Question 6

Bilateral Vestibular Schwannomas and pathognemonic for what?

Answer 6

NF-2

NF-2 is also a/w meningioma

Question 7

child with headache that is worse upon awaakening

hist: perivascular pseudo rosettes

Answer 7

Ependymomas

Question 8

what is the most common primary malignant brain tumor in kids?

Answer 8

Medulloblastomas

Question 9

densely packed cells with scant cytoplasm

round, enhancing lesion in the 4th ventricle

Answer 9

PNET tumor (Medulloblastoma)

Question 10

CNS Neoplasms in adult in their prime
-Necrosis
Hemorrhage
Endothelial hyperplasia
Psuedopalisade

Answer 10

Glioblastoma multiforme

Question 11

Neuronal vacuolation w spongiform changes

Answer 11

Creutzfeldt Jakob Disease

Question 12

what is the clinical triad of huntingtons

Answer 12

early onset dementia
choreoanthetosis
psychosis