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Revise Radiology Qs Notes > Revise Radiology Neuro 4 > Flashcards

Revise Radiology Neuro 4 Flashcards

1
Q

Putaminal atrophy with hyperintense T2 rim

A

Multi-system atrophy

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2
Q

TB pachymeningitis involves

A

Middle cranial fossa, cavernous sinus, tentorium

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3
Q

Leigh disease distribution

A

Spares mamillary bodies

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4
Q

Boston CAA Criteria tiers

A

Definite, Probable with supporting features, Probable, Possible

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5
Q

Astrocytoma imaging featue

A

Patchy enhancement.
Haemorrhage is rare.

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6
Q

Immunosuppressed, PML cause

A

JC virus (polyoma virus)

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7
Q

Pilocytic astrocytomas associated with

A

NF1

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8
Q

Astrocytoma histology

A

Rosenthal fibres

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9
Q

Most sensitive MRI sequence for SAH

A

FLAIR

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10
Q

Genetic mutation associated with Pineoblastoma

A

DICER-1

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11
Q

Low T2, enhancing lesions in posterior fossa

A

Erdheim Chester disease

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12
Q

Most common syndrome associated with megalencephaly

A

NF-1

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12
Q

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

A

Cryptococcus

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13
Q

Underlying mechanism of spinal AVF

A

Venous hypertension reducing tissue perfusion

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14
Q

Band heterotopia/double cord syndrome responsible chromosome

A

Chromosome X

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15
Q

Metastatic melanoma histology

A

Pleomorphic cells with prominent nucleoli

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16
Q

Slit like ventricles

A

Intracranial hypertension

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17
Q

Meningioma vs Craniopharyngioma

A

Meningioma can displace the diaphragm sellae superiorly

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18
Q

Dural AVF classification system

A

Cognard classification

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19
Q

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

A

Diffuse Pontine Glioma

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20
Q

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

A

PRES

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21
Q

Metachromic Leukodystrophy responsible enzyme deficiency

A

Arylsulphatase A

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22
Q

Type III AVM Rx

A

Embolisation and surgical resection

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23
Q

Most specific signs of IIH

A

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

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24
Q

Untreated Wernicke’s mortality

A

20%

25
Q

Transverse, single lobed cerebellum with absent vermis

A

Rhombencephalosynapsis

26
Q

Most common location for spinal ependymomas

A

Cervical spine (44%)

27
Q

Megalencephaly associated with

A

Polymicrogyria and agyria

28
Q

Fisher SAH grading system

A

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

29
Q

?CVST, bilateral thalamic oedema on CT, next Ix

A

MR Venogram

30
Q

Homogenously enhancing pineal mass with central calcification

A

Germinoma

31
Q

Perfusion feature of high grade glioma

A

High cerebral blood volume

32
Q

Genetic condition associated with multiple spinal AVMs

A

Osler-Weber-Rendu

33
Q

Meckel-Gruber syndrome triad

A

Occipital encephalocele, multiple renal cysts, polydactyly

34
Q

Kernohan’s phenomenon

A

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

35
Q

Cortical thickening, focal signal abnormality from cortex to ventricle

A

Focal Cortical Dysplasia type IIb

36
Q

T2 hyperintense lesions with perivascular enhancement in HIV

A

Epstein Barr Virus

37
Q

Ix for limbic encephalitis

A

MR Spectroscopy

38
Q

Ix to exclude Alzeimers

A

Amyloid PET

39
Q

Down’s associated with

A

Cerebral Amyloid Angiopathy

40
Q

Pachymeningeal enhancement & Brainstem sagging

A

Spontaneous intracranial hypotension

41
Q

Bilateral T2 intense lesions with ring enhancement and haemorrhage

A

Acute haemorrhagic Encephalomyelitis

42
Q

Gold standard Ix for Spinal AVF

A

Catheter Angio

43
Q

?ICA dissection best Ix

A

DSA

44
Q

Older patients with AVMs more likely to

A

Haemorrhage

45
Q

Loss of transverse fibres in pons

A

Hot Cross Bun Sign - Multi system atrophy

46
Q

Commonest complication of type 2 Spinal AVM

A

SAH

47
Q

Well defined, heterogenous spinal signal abnormality with T2 hypointense rim

A

Spinal cavernous malformation

48
Q

Hydrocephalus associated with subfalcine herniation (side)

A

Contralateral

49
Q

Achondroplasia causes

A

Communicating hydrocephalus

50
Q

Focal Cortical Dysplasia presenting in adults

A

Type 1

51
Q

Leptomeningeal tumour spread most associated with (WHO Grade)

A

Grade IV

52
Q

Spinal PNET hystology

A

Small round blue cells

53
Q

Most sensitive sequence for CJD

A

DWI

54
Q

ASPECT score for mechanical thrombectomy

A

> 7

55
Q

Osmotic demyelination syndrome distribution

A

Spares corticospinal tracts

56
Q

Cystic lesions with oedema and enhancement

A

Colloid Neurocysticercosis

57
Q

Potts tumour Ix

A

MRI with contrast

58
Q

Thickened infundibulum & Loss of posterior bright spot

A

HPA axis sarcoidosis

59
Q

Descent of tonsils and brainstem

A

Chiari 1.5

60
Q

Dural based tumour with skull invasion

A

Haemangiopericytoma

Revise Radiology Qs Notes (60 decks)

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