Revise Radiology Neuro 4

Question 1

Putaminal atrophy with hyperintense T2 rim

Answer 1

Multi-system atrophy

Question 2

TB pachymeningitis involves

Answer 2

Middle cranial fossa, cavernous sinus, tentorium

Question 3

Leigh disease distribution

Answer 3

Spares mamillary bodies

Question 4

Boston CAA Criteria tiers

Answer 4

Definite, Probable with supporting features, Probable, Possible

Question 5

Astrocytoma imaging featue

Answer 5

Patchy enhancement.
Haemorrhage is rare.

Question 6

Immunosuppressed, PML cause

Answer 6

JC virus (polyoma virus)

Question 7

Pilocytic astrocytomas associated with

Answer 7

NF1

Question 8

Astrocytoma histology

Answer 8

Rosenthal fibres

Question 9

Most sensitive MRI sequence for SAH

Answer 9

FLAIR

Question 10

Genetic mutation associated with Pineoblastoma

Answer 10

DICER-1

Question 11

Low T2, enhancing lesions in posterior fossa

Answer 11

Erdheim Chester disease

Question 12

Most common syndrome associated with megalencephaly

Answer 12

NF-1

Question 12

Dilated, non-enhancing perivascular spaces. B/L low T1/T2, ring enhancing lesions

Answer 12

Cryptococcus

Question 13

Underlying mechanism of spinal AVF

Answer 13

Venous hypertension reducing tissue perfusion

Question 14

Band heterotopia/double cord syndrome responsible chromosome

Answer 14

Chromosome X

Question 15

Metastatic melanoma histology

Answer 15

Pleomorphic cells with prominent nucleoli

Question 16

Slit like ventricles

Answer 16

Intracranial hypertension

Question 17

Meningioma vs Craniopharyngioma

Answer 17

Meningioma can displace the diaphragm sellae superiorly

Question 18

Dural AVF classification system

Answer 18

Cognard classification

Question 19

T2 bright, non-enhancing brainstem lesion, flattened 4th ventricle

Answer 19

Diffuse Pontine Glioma

Question 20

HTN, headaches, seizures. Parietal and occipital white matter oedema

Answer 20

PRES

Question 21

Metachromic Leukodystrophy responsible enzyme deficiency

Answer 21

Arylsulphatase A

Question 22

Type III AVM Rx

Answer 22

Embolisation and surgical resection

Question 23

Most specific signs of IIH

Answer 23

Intraoccular protrusion of optic nerve head, flattened posterior sclera, Transverse sinus stenosis

Question 24

Untreated Wernicke's mortality

Answer 24

20%

Question 25

Transverse, single lobed cerebellum with absent vermis

Answer 25

Rhombencephalosynapsis

Question 26

Most common location for spinal ependymomas

Answer 26

Cervical spine (44%)

Question 27

Megalencephaly associated with

Answer 27

Polymicrogyria and agyria

Question 28

Fisher SAH grading system

Answer 28

0 = No SAH. 1 = Focal or thin (<5mm) diffuse with no IVH (24% chance of symptomatic vasospasm). 2 = Focal or thin diffuse with IVH (33% chance of symptomatic vasospasm). 3 = Thick SAH, no IVH, 33% chance of symptomatic vasospasm 4 = Thick SAH with IVH, 40% chance of symptomatic vasospasm

Question 29

?CVST, bilateral thalamic oedema on CT, next Ix

Answer 29

MR Venogram

Question 30

Homogenously enhancing pineal mass with central calcification

Answer 30

Germinoma

Question 31

Perfusion feature of high grade glioma

Answer 31

High cerebral blood volume

Question 32

Genetic condition associated with multiple spinal AVMs

Answer 32

Osler-Weber-Rendu

Question 33

Meckel-Gruber syndrome triad

Answer 33

Occipital encephalocele, multiple renal cysts, polydactyly

Question 34

Kernohan's phenomenon

Answer 34

Transtentorial herniation leads to compression of contralateral cerebral peduncle which causes ipsilateral motor defects

Question 35

Cortical thickening, focal signal abnormality from cortex to ventricle

Answer 35

Focal Cortical Dysplasia type IIb

Question 36

T2 hyperintense lesions with perivascular enhancement in HIV

Answer 36

Epstein Barr Virus

Question 37

Ix for limbic encephalitis

Answer 37

MR Spectroscopy

Question 38

Ix to exclude Alzeimers

Answer 38

Amyloid PET

Question 39

Down's associated with

Answer 39

Cerebral Amyloid Angiopathy

Question 40

Pachymeningeal enhancement & Brainstem sagging

Answer 40

Spontaneous intracranial hypotension

Question 41

Bilateral T2 intense lesions with ring enhancement and haemorrhage

Answer 41

Acute haemorrhagic Encephalomyelitis

Question 42

Gold standard Ix for Spinal AVF

Answer 42

Catheter Angio

Question 43

?ICA dissection best Ix

Answer 43

DSA

Question 44

Older patients with AVMs more likely to

Answer 44

Haemorrhage

Question 45

Loss of transverse fibres in pons

Answer 45

Hot Cross Bun Sign - Multi system atrophy

Question 46

Commonest complication of type 2 Spinal AVM

Answer 46

SAH

Question 47

Well defined, heterogenous spinal signal abnormality with T2 hypointense rim

Answer 47

Spinal cavernous malformation

Question 48

Hydrocephalus associated with subfalcine herniation (side)

Answer 48

Contralateral

Question 49

Achondroplasia causes

Answer 49

Communicating hydrocephalus

Question 50

Focal Cortical Dysplasia presenting in adults

Answer 50

Type 1

Question 51

Leptomeningeal tumour spread most associated with (WHO Grade)

Answer 51

Grade IV

Question 52

Spinal PNET hystology

Answer 52

Small round blue cells

Question 53

Most sensitive sequence for CJD

Answer 53

DWI

Question 54

ASPECT score for mechanical thrombectomy

Answer 54

>7

Question 55

Osmotic demyelination syndrome distribution

Answer 55

Spares corticospinal tracts

Question 56

Cystic lesions with oedema and enhancement

Answer 56

Colloid Neurocysticercosis

Question 57

Potts tumour Ix

Answer 57

MRI with contrast

Question 58

Thickened infundibulum & Loss of posterior bright spot

Answer 58

HPA axis sarcoidosis

Question 59

Descent of tonsils and brainstem

Answer 59

Chiari 1.5

Question 60

Dural based tumour with skull invasion

Answer 60

Haemangiopericytoma