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FRACP short case > Other cranial nerves > Flashcards

Other cranial nerves Flashcards

1
Q

Central causes of trigeminal nerve palsy?

LOSS OF ALL FACIAL SENSATION

A 
Vascular
Tumour
Vascular
MS
Syringobulbia
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2
Q

Peripheral causes of trigeminal nerve palsy?

LOSS OF SENSATION IN 1 DIVISION

A 
Aneurysm
Tumour
Chronic meningitis
Sjorgens
SLE
Toxins
Idiopathic
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3
Q

Causes of a cavernous sinus lesion - CNIII, IV, V and VI palsies

A

Aneurysm
Thrombosis
Tumour

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4
Q

Loss of facial pain and temperature only with preservation of light touch?

A

Medullary CNV lesion

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5
Q

Loss of facial light touch only with preserved pain and temperature?

A

Pontine CNV lesion

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6
Q

Loss of ipsilateral corneal reflex with preserved blink of opposite eye?

A

Ipsilateral VII nerve palsy

Intact CNV

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7
Q

Central causes of Seventh nerve palsy?

A

Vascular

Tumour

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8
Q

LMN causes of VII nerve palsy?

A 
Acoustic neuroma
Meningioma
Bell's palsy
Ramsey-hunt syndrome
OM
Fracture of temporal bone
Parotid tumour
Sarcoidosis
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9
Q

Causes of CN V, Vi and VII palsies

A 
PONTINE LESIONS
Vascular
Tumour
Syringobulbia
MS
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10
Q

Causes of bilateral LMN CN VII palsies and weakness?

A 
GBS
Bilateral parotid disease
Mononeuritis multiplex
Neuromuscular junction diseases
Myopathies
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11
Q

Causes of sensorineural deafness?

A 
Degeneration
Trauma
Toxic
Infection
Tumour
Brain stem lesions
Vascular disease
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12
Q

Causes of conductive deafness?

A

Wax
OM
Otosclerosis
Paget’s disease of the bone

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13
Q

Central causes of ninth and tenth nerve palsies?

A

Vascular
Tumour
Syringobulbia
MND

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14
Q

Peripheral causes of a ninth and tenth nerve palsies?

A

Aneurysm
Tumour
Chronic meningitis
GBS

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15
Q

What is psuedobulbar palsy?

A

Bilateral UMN lesions of IX, X and XII nerves

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16
Q

Causes of UMN XII nerve palsy?

A

Vascular
MND
Tumour
MS

17
Q

Causes of unilateral LMN XII nerve palsy?

A 
Vascular - thrombosis, aneurysm
MND
Syringobulbia
Tumour
Chronic meningitis
Trauma
Arnold-Chiari malformation
Fracture or tumour of the base of skull
18
Q

Causes of bilateral LMN XII nerve palsy?

A

MND
Arnold-Chiari malformation
GBS
Polio

19
Q

What is Arnold-Chiari Malformation?

A

Protrusion of the cerebeller tonsils through the foramen magnum.

  • -> lower cranial nerve palsies
  • -> cerebellar limb signs
  • -> UMN signs in the legs
20
Q

Causes of multiple cranial nerve palsies?

A 
CANCER!!!
chronic meningitis
GBS
Brain stem lesions - vascular lesions
Arnold-Chiari malformation
Trauma
Lesion at base of skull
Mononeuritis multiplex

FRACP short case (11 decks)

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