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Neuro II > Brainstem Lesions > Flashcards

Brainstem Lesions Flashcards

1
Q
  1. Ipsilateral tongue paralysis
    Ipsilateral tongue atrophy
  2. Contralateral spastic hemiplegia
A

a12h

  1. Hypoglossal nerve
  2. CST
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2
Q
  1. Ipsilateral tongue paralysis
    Ipsilateral tongue atrophy
  2. Contralateral spastic hemiplegia
  3. Contralateral body prop/2pt/vibration
A

a12h + ML

  1. Hypoglossal nerve
  2. CST
    e. ML
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3
Q
  1. Ipsilateral paralysis of lateral gaze and/or internal strabismus
  2. Contralateral spastic hemiplegia
A

a6h

  1. Abducens nerve
  2. CST
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4
Q
  1. Ipsilateral paralysis of lateral gaze and/or internal strabismus
  2. Contralateral spastic hemiplegia
  3. Bell’s Palsy (sundown)
A

Millard Gubler - a6h + 7

  1. Abducens nerve
  2. CST
  3. Facial nerve
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5
Q
  1. Ipsilateral paralysis of lateral gaze and/or internal strabismus
  2. Contralateral loss of proprioception/2pt/vibration
  3. Uncoordinated horizontal gaze
  4. ??Ipsilateral CN nuclei&raquo_space; Uvula deviation to normal side, tongue deviation ot lesioned side
  5. Contralateral spastic hemiplegia
A

a6h + ML (Syndrome of Foville)

  1. Abducens nerve
  2. ML
  3. MLF –> INO (CN6 and 3)
  4. CBT - crossed (ipsilateral)
  5. CST
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6
Q
  1. ipsilateral loss of sensation to face and scalp, ipsilateral paralysis of muscles of mastication
  2. contralateral spastic hemiplegia
A

a5h

  1. trigeminal (V1) nerve
  2. CST
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7
Q

crossed CBT - ipsilateral or contralateral?

level or decussation?

A

ipsilateral

medulla

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8
Q

areas of uncrossed CBT?

A

midbrain and pons

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9
Q

nuclei involved in CBT

A

nucleus ambiguus - uvula deviates toward normal

hypoglossal nuclei - tongue deviates toward lesion

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10
Q

INO

R nucleus of CN6 contracts ___ LR&raquo_space; simulates __ nucleus of CN3 via __MLF

A

MLF,

Right nucleus of CN6 contracts Right LRmuscle&raquo_space; simulates Left nucleus of CN3 (left MRmuscle) via Left MLF

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11
Q
  1. ipsilateral loss of sensation to face and scalp, ipsilateral paralysis of muscles of mastication
  2. contralateral spastic hemiplegia
  3. ??Contralateral CN nuclei&raquo_space; supranuclear facial palsy, hypoglossal nucleus, nucelus ambiguus, abducens nucelus
A

a5h and Dorsal extension

  1. Triennial nerve
  2. ML
  3. uncrossed CBF
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12
Q
  1. ipsilateral external strabismus, pupil dilation, complete ptosis
  2. contralateral spastic hemiplegia
  3. contralateral resting tremor
  4. supranuclear facial palsy
A

a3h (Weber’s Syndrome)

  1. occulomotor nerve
  2. CST
  3. Substantia nigra
  4. uncrossed CBT
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13
Q
  1. Dysarthria, dysphagia, uvula deviation to normal side
  2. loss of body contralateral pain/temp
    sometimes: contralateral loss of 2pt/prop and loss of gag reflex+ipsilatereal anesthesia of palate/pharynx
A

Lesion of Nucleus Ambigus + SL

  1. Nucelus ambiguus
  2. ML
  3. sometimes - ML + solitary nucleus
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14
Q

Name for:

  1. loss of contralateral pain/temp
  2. loss of ipsilateral pain/temp from 1/2 of face
A

alternating hemianalgesia

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15
Q

alternating hemianalgesia

A

Wallenberg Syndrome = Lateral MEdullary Syndrome

PICA

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16
Q

Deaf
Bell’s palsy
Alternating hemianalgesia
intention tremors

A

Cerebellopontine Angle syndrome

17
Q

what is the cause of cerebellopontine syndrome?

A

Tumor of posterior fossa = comrpesses pons, cerebellum, medulla

18
Q
  1. External strabismus, pupillary dilation, complete ptosis
  2. Contralateral loss of proprioception/2pt
  3. intention tremor/spasticity, ataxia, etc.
A

Benedikt’s Syndrome (leision of midbrain tegmentum)

  1. CN3
  2. ML
  3. Red nuc/seperior cerebellar peducncles/midbrain tegmentum
19
Q

paralysis of upward gaze caused by what and what structure is affected

A

Parinaud Syndrome -

superior colliculus compressed by pineal tumor or varix of Great Vein of Galen

20
Q

behavioral changes, crawling ant sensation

A

Thalamic Syndrome

Neuro II (9 decks)

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