Localization - Abramovitz

Question 1

What are the effects of an internal capsule lesion?

Answer 1

Contralateral upper motor neuron facial paralysis.

Contralateral arm and leg heiplegia.

Afferent fibers to the PPRF from the frontal eye field.

Discriminative touch impairment possible

Alertness
 No dysphagia (if dominant hemisphere)
 Visual field deficit possible.

Question 2

What is Wallenberg Syndrome?

Answer 2

Ipsilateral face pain/reduced pain and temperature sensation in the face

Loss of pain and temperature in the contralateral limbs and body

Ipsilateral Horner Syndrome

Nystagmus

Incoordination of the ipsilateral arm

Leaning and veering while sitting or walking with gait ataxia

Dysphagia and hoarseness in deep lesions