Name the artery, affected structures, and associated deficits for the following syndrome:
Lateral medullary plate syndrome aka Wallenburg syndrome
Artery: Vertebral or PICA
Affected structures:
1. Inferior cerebellar peduncle --> ipsilateral gait and limb ataxia (damage to reticulospinal tract, an ipsilateral pathway), nystagmus (damage to vestibular nuclei inputs and outputs)
2. Solitary tract and nucleus --> loss of taste sensation
3. Nucleus ambiguus --> loss of motor for IX, X (dysphagia, hoarseness)
4. Spinal trigeminal tract --> no pain and temp. sensation from the ipsilateral face
5. Spinothalamic tract --> no pain and temp. sensation from the contralateral body
6. Damage to hypothalamospinal (sympathetic control) fibers --> Horner's syndrome
Name the artery, affected structures, and associated deficits for the following syndrome:
Medial medullary plate syndrome
Artery: anterior spinal artery
Affected structures:
1. Medial lemniscus --> contralateral loss of discriminative touch, vibration, and conscious proprioception
2. Pyramidal tract --> contralateral hemiparesis
3. Hypoglossal nerve and nucleus --> ipsilateral tongue deviation on protrusion
Name the artery, affected structures, and associated deficits for the following syndrome:
Weber's syndrome
Artery: paramedian branches of the PCA
Affected structures:
1. Cerebral peduncle --> contralateral body and facial paralysis (corticospinal and corticobulbar tracts)
2. CN III --> CN III palsy (blown pupil, down-and-out, ptosis)
Name the artery, affected structures, and associated deficits for the following syndrome:
Locked-in syndrome
Artery: Basilar a.
Affected structures:
Descending corticobulbar and corticospinal tracts --> total paralysis of limbs and face (except CN III, can still blink)
