What is the medial medullary syndrome (Dejerines syndrome)?
Medial medullary syndrome is caused by occlusion of the anterior spinal artery or its parent vertebral artery, resulting in the following signs:
- Ipsilateral paresis of the tongue (damage to cranial nerve XII), which deviates toward the lesion
- Contralateral hemiplegia (damage to corticospinal tract) with sparing of the face
- Contralateral loss of position and vibratory sensation (damage to medial lemniscus)