An easy way to differentiate these midbrain syndromes is to remember that, moving from anterior to posterior, all three involve oculomotor nerve damage, with additional distinct features:
Weber’s syndrome – affects the anterior midbrain, involving the corticospinal tracts, leading to contralateral weakness.
Benedikt’s syndrome – involves the mid-midbrain, including the red nucleus, causing abnormal involuntary movements such as tremor and chorea.
Claude’s syndrome – localized to the posterior midbrain, where superior cerebellar peduncle fibers (after decussation) are affected, resulting in cerebellar signs (think Claude = Cerebellar).
#Neurotip