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Flashcards in [space occupying lesions] Deck (35)
1

[SOL]: which CN is the most commonly affected and why?

6th
longest intracranial course

2

[SOL]: if a headache is worse on lying down, waking, bending forward or coughing what does this suggest

Raised ICP

3

[SOL]: What are the 4 potential signs that a SOL can present with

raised ICP
personality change
Focal neurology (abducens most common)
seizures

4

[SOL]: give 5 causes of SOL

tumour (1 or 2ry)
aneurysm
cyst
subdural haematoma
abscess

5

[SOL]: what is the 1st line Ix

CT

6

[SOL]: what is the risk with raised ICP and doing an LP BEFORE imaging

Coning (cerebellar tonsils herniate through foramen magnum)

7

[SOL]: What is 1st line tx for both benign and malignant SOLs

surgical resection

8

[SOL]: if the tumour is inaccessible what is the 2 line Tx?

chemo-radiotherapy

9

[SOL]: If a tumour is inaccessible and is causing hydrocephalus what is the treatment to remove this complication

ventriculo-peritoneal shunt

(shunt all the way from ventricle to peritoneal cavity!)

10

[SOL]: Complete excision of intracranial tumours is difficult, what can be inserted intracranially during the operation?

carmustine wafers

11

[SOL]: what is the main SE of carmustine wafers

severe cerebral oedema

12

[SOL]: what is the Tx of normal and acute cerebral oedema? (2)

normal = dexamethasone
acute raised ICP = mannitol

13

[SOL][localising features]: damage to which lobe would result in wernickes dysphasia?

temporal

14

[SOL][localising features]: damage to which lobe would result in brocas dysphasia

frontal

15

[SOL][localising features]: what are the characteristics of brocas dysphasia

preserved comprehension, impaired expression

16

[SOL][localising features]: what are the characteristics of Wernickes dysphasia

impaired comprehension, preserved ability to speak fluently but content is empty

17

[SOL][localising features]: damage to which lobe would result in amnesia

temporal

18

[SOL][localising features]: damage to which lobe would result in hemiparesis

frontal

19

[SOL][localising features]: damage to which lobe would result in personality changes/lack of initiative or drive

frontal lobe

20

[SOL][localising features]: damage to which lobe would result in executive dysfunction

frontal lobe

21

[SOL][localising features]: damage to which lobe would result in reduced verbal fluency - e.g. name words beginning with A

frontal

22

[SOL][localising features]: over familiarity, copying other people postures, disinhibition and utilization behaviour (puts glasses on, then another pair etc) is indicative of ... syndrome

orbitofrontal

23

[SOL][localising features]: damage to which lobe would result in hemisensory loss

parietal

24

[SOL][localising features]: damage to which lobe would result in reduced 2 point discrimination

parietal

25

[SOL][localising features]: damage to which lobe would result in inability to recognise objects by touch

parietal

26

[SOL][localising features]: damage to which lobes could result in dysphasia

temporal (wernicke)
parietal
frontal (broca)

27

[SOL][localising features]: damage to which lobe would result in contralateral homonymous hemianopia

temporal

28

[SOL][localising features]: damage to which lobe would result in contralateral homonymous upper quadrantopia

temporal (with only meyers loop affected)

29

[SOL][localising features]: damage to which lobe would result in contralateral visual field defects/polyopia

occipital

30

[SOL][localising features]: what mneumonic can be used to remember symptoms of cerebellar damage

DASHING

Dysdiadochokinesis/Dysmetria (pastpointing)
Ataxia
Slurred speech
Hypotonia
Intention tremor
nystagmus
gait abnormality

31

[SOL][localising features]: damage to which brain area would occur in an acoustic neuroma/vestibular schwannoma

cerebellopontine angle

32

[SOL][localising features]: damage to which lobe would result in ipsilateral deafness

cerebellopontine angle

33

[SOL][localising features]: damage to which lobe would result in nystagmus

cerebellopontine angle

34

[SOL][localising features]: damage to which lobe would result in 5th, 6th or 7th CN palsys

cerebellopontine angle

35

[SOL][localising features]: damage to which lobe would result in dissociated pupil response/failure of up/down gaze

midbrain