SBAs for the final FRCR 2A Unit 6

Question 1

Chronic infarct vs enlarged perivascular spaces

Answer 1

Perivascular spaces have normal surrounding brain parenchyma

Question 2

CADASIL Distribution

Answer 2

Anterior temporal pole and external capsule have high sensitivity and specificity

Question 3

Commonest intracranial mass lesions in AIDS

Answer 3

Toxoplasmosis,
Lymphoma,
Cryptococcus
(in that order)

Question 4

Anterior cranial fossa lesion with flow voids

Answer 4

Haemangiopericytoma

Question 5

Feeding artery of tentorial or CPA angle tumours

Answer 5

Bernasconi-Casanari artery (ICA)

Question 6

HSV vs Japanese encephalitis

Answer 6

Both post viral infection.
Japanese encephalitis involves basal ganglia

Question 7

Medulloblastoma vs pilocytic astrocytoma

Answer 7

Astrocytomas are more peripheral, and usually have cyst in nodule appearance

Question 8

Smooth pachymeningeal thickening and enhancement

Answer 8

Intracranial hypotension

Question 9

High grade tumour features on MR Spect

Answer 9

Elevated Choline, Reduced NAA, Cho/Cr ratio > 1.5

Question 10

Cavernous haemangioma orbital location

Answer 10

Intraconal

Question 11

Rapidly growing, aggressive orbital mass causing proptosis, child

Answer 11

Rhabdomyosarcoma

Question 12

Child, orbital lesion with fluid fluid levels

Answer 12

Venous lymphatic malformation

Question 13

Optic nerve glioma vs meningioma

Answer 13

Glioma causes optic nerve widening

Question 14

GCS needed for CT brain

Answer 14

LESS THAN 13 within 2 hours,
Under 15 after 2 hours

Question 15

Most sensitive MRI sequence for SAH

Answer 15

FLAIR

Question 16

Hypointensity of superior colliculus and hyperintensity in basal ganglia

Answer 16

Wilson’s disease

Question 17

Causes of NPH

Answer 17

Idiopathic,
meningitis, trauma, neurosurgery, previous SAH

Question 18

PRES immediate Rx

Answer 18

Manage BP

Question 19

MRI sequence to demonstrate dissemination in time

Answer 19

T1 pre and post contrast

Question 20

White matter hyperintensities and focal infarcts with neurology in child-bearing women

Answer 20

SLE

Question 21

PET CT findings in Alzheimers

Answer 21

Reduced activity in precuneus/posterior cingulate gyrus and superior, middle and inferior temporal lobe gyrus

Question 22

Hypothalamic hamartomas MRI progression

Answer 22

Often no change in subsequent imaging

Question 23

Intradural, extramedullary lesion with low T1/T2 and patchy enhancement

Answer 23

Meningioma

Question 24

Gorlin golz associated with

Answer 24

Multiple odontogenic keratocysts

Question 25

Kidney shape, high T1 lesion in pituitary fossa

Answer 25

Rathke cleft cyst

Question 26

Retropharyngeal space abscess vs suppurative lymph node

Answer 26

Abscess fills entire space side to side, node is unilateral

Question 27

Demyelination of corpus callosum, alcohol

Answer 27

Marchifava Bignami disease

Question 28

Crossing the midline with no necrosis or invasion

Answer 28

MS

Question 29

Pregnant, bilateral thalamic low attenuation

Answer 29

Straight sinus thrombosis

Question 30

Perimesencephalic SAH, angio normal, next step

Answer 30

Catheter angiography

Question 31

Most sensitivie MRI sequence to diagnose ischaemia

Answer 31

DWI

Question 32

Cystic space in frontal lobe with CSF density, adjacent enlargement of lateral ventricle

Answer 32

Porencephalic cyst

Question 33

Fahr vs pseudohypoparathyroidism

Answer 33

Normal calcium phosphorous metabolism

Question 34

Post partum seizures, T2 intensity in parieto-occipital

Answer 34

PRES

Question 35

NPH vs Aqueductal stenosis

Answer 35

Funnel shaped acqueduct

Question 36

Meningioma vs vestibular schwannoma

Answer 36

Erosion of adjacent porus acousticus occurs in schwannoma

Question 37

Autoimmune hypophisitis vs pituitary adenoma

Answer 37

AH causes loss of posterior pituitary bright spot