Wallenberg syndrome , Lateral medullary syndrome - posterior inferior cerebellar artery syndrome скачать в хорошем качестве

Wallenberg syndrome , Lateral medullary syndrome - posterior inferior cerebellar artery syndrome

Lateral Medullary Infarction (Wallenberg syndrome) Lateral medullary infarction, which is usually caused by proximal vertebral artery occlusion, produces Wallenberg syndrome . Clinical manifestations vary, depending on the extent of infarction. 1. Vertigo, nausea, vomiting, and nystagmus result from involvement of the vestibular nuclei. 2. Hoarseness and dysphagia are caused by involvement of the dorsal motor nucleus of the vagus (X) nerve, nucleus solitarius, and nucleus ambiguous. 3. Ipsilateral Horner syndrome, limb ataxia, and loss of all sensation over the face and of light touch and position sense in the limbs are due to involvement of the descending sympathetic tract, inferior cerebellar peduncle, and spinal nucleus and tract of the trigeminal (V) nerve. 4. Contralateral impaired pin and temperature sense in the limbs results from involvement of the spinothalamic tract.